Showing posts with label NJS. Show all posts
Showing posts with label NJS. Show all posts

Monday, June 23, 2008

The NJS Bike Part 3



This is going to be a short one. Just to add I picked up a Nitto seatpost, SP72. Probably one of the most beautiful seatposts ever made. Still a little expensive @ $120; fortunately I found one used and in very good shape @ 1/2 the price. I also had some fun making some Bottom Bracket tools to R&R a Tange Steel Levin Bottom Bracket with a Tange NJS Alloy Levin Bottom Bracket.

These are the headset tools I made. The top is a headset cup remover, which is nothing more than a piece of 3/4" copper pipe with 4, 4" slits cut along the sides. All you need to do is pull the ends out a little and it works the same as the Stainless version (you work it into the head tube and pound out the cup). All this for about $2. The second is a headset press. The copper pieces are some plumbing adapters that fit a 1" headset to a "T"; the price is about $6.00. Generally I don't like to install headsets and only install the cups if they are steel. The cup remover worked like a charm.

The press takes a little more finesse, but it does work as long as your very careful. Would I trust myself and these tools on a Chris King? Uh, no. Would I use this system on a Cane Creek S2, which had some of the lightest and fragile cups on the market? What do you think?

This was a steel frame with very tough alloy NJS headset and it went on without any problem; the NJS stamp appears in the stem and headset photo; it is probably the smallest NJS stamp I have ever seen, but it is visible when you click on the photo.

Done!

Monday, February 4, 2008

The Soma Bike is Done!

Frame: Soma Rush (55cm); Fork: Threaded Tange steel; Headset: Tange Levin engraved; Bottom Bracket: Shimano Dura Ace (NJS) cups/bearings, Campagnolo spindle; Crank: Shimano Track (NJS); Pedals: MKS (NJS); Toeclips: Soma; Straps: Toshi; Handlebars: Nitto (NJS); Stem: Nitto (NJS); Rims: Tubular Araya (NJS); Spokes/Nipples: DT 15g; Hubs: Suzue Pro Max (NJS)Tires: Vittoria CX; Wheels: 3 cross front/ 4 cross rear; Cogs:18T (Soma), 16T (Shimano)(NJS); Seat post: Soma; Seat: Brooks; Brake caliper: Tektro; Brake lever: Soma.






















The bike is sleek, smooth and white. If using a NJS part made sense I used it, otherwise I went with Soma or Tange. I have a few more NJS parts but I perferred the bike this way. The saddle is a wonder. My best friend and riding buddy handed over this beautiful Brooks B17 Sprinter. For those of you that don't know, the Sprinter was the defacto saddle for track racers in the 50's. The saddle was introduced in the 1925 and was produced for 30 years. Brooks is now making a collectors version of the saddle with a Ti frame. It's a very cool saddle.


Is a bike really ever done? This post is over 4 months old and I'm still tweaking it. If you remember back @ http://onespeedbiker.blogspot.com/2007/11/njs-part-3-threadless-steerers-suck.html I said a $160 seatpost was over the top; and I still agree. However, what if you can get the $160 seatpost for say $60? and here it is! A Nitto SP72; considered by many the nicest seatpost ever made. Unless you are holding this seatpost in your hand, you can't imagine how nice it really is. The minor marks you see is the result of the seat post being inserted into a seat tube a couple of times. I bought it used from Japan for $67.20 shipped.

Sunday, January 20, 2008

The Nishiki conversion; it lives!

This is part 2 of the  The Nishiki Conversion

A more intelligent person probably would have kept the frame and thrown the rest away. I still think that would have been easier. There are also some badly rusted chrome parts that did not clean up well. Still I really like the old Dia Comp parts. As usual as the build took shape some of my plans changed.

I discussed the wheels earlier, which are the original Araya 27” hoops and one Shimano 333 hub (front). The rear is a Formula loose ball fixed/fixed hub. Further I bought a Surly 22T cog and lockring. I also replaced all the spokes; the front spokes were extras from another build and the rear spokes came (along with some extra long nipples).

Frame wise, I ended up stripping off the my rattle can copper paint, which was an awful looking color for the frame anyway. I entertained trying the rattle can approach again with a different color and then came to my senses and took the frame to the powder coater. Okay, $100 is a bit much for this project, but I won't have to deal with it again and it will look really nice. My first choice was a burnished brass, but gold metallics require a clear coat and that’s another $60. Turns out my son got his first choice, with a dark green metallic (my other green bike is an emerald green).

Second there were these pedals. I actually threw away these OEM pedals (twice!) before I took a wire wheel to them and knocked off all the rust. Mechanically they work as a well as new, but the rust really did a job on the chrome. I was left obsessing over a set of Kyokuto pedals. I have seen them in several incarnations. The first is the all steel version I was dealing with, which include a strap guide on the outer edge of the cage. I tried using theses guides but they did not put strap in a postion that seemed shoe friendly. There is also NJS style, which have an abreviated aluminum cages. The NJS style also have rivets that hold on the cage on the body, all the other versions use a tab on the body through a slit in the cage. There is an aluminum caged version with no flip tab and another that does. I checked eaby for a better set, but had trouble finding a pair for less than $50. Then lo and behold I finally managed to find the above pair for $16.50. These have an aluminum cage with a flip tap.

The Nishiki also has a Suntour Sakae steel chromed headset. While in better condition than the pedals, the chrome on top lockring took the brunt of the corrosion. The lockring is also made for a 21.1 stem? The stem steps down from 22.1. After a little investigation I discovered this the use of a 21.1 stem is common on BMX and crusier. If I wanted a replacement, I would best look for a Crusier style headset. In the mena time I bought a similar style JIS Bottom bracket that tuned out to be mismarked (this was before I realized the need for a 21.1 top lock ring. I was able to send that back, but I replaced it with a much cheaper BMX headset, where the top lockring fit, but was a might puny. I may just stay with what I have (it's not THAT bad). The bottom bracket was in questionable condition with the spindle races being pretty shot, but the cups were pretty smooth. The owner of one of the LBS(s) in town, is a friend who lets me rummage around through most his old parts bins. He used to charge me a nominal fee, now he just lets me have them gratis. The original spindle had threaded studs at the ends and was asymmetrical. I found a replacement spindle and the short side fit pretty close, but I was hoping for perfection.

The Maxy crank has a pressed on 52 tooth chain ring and is therefore flat on the mounting side. To get a perfect chain line, I needed a spindle a few millimeters smaller. I poked around in the LBS and after trying about 8 spindles, I finally found one that gave me a 1mm gap. The Bottom Bracket itself was Tange, but there was something I didn’t like how the bearings (or the bearing cage) fit into the cups. I had some Sakae cups that seemed to like the bearing cages much better so I used them.

The chain was just an NOS Parts bin 3/32 KMC. The handle bar was a chromed Champion drop bar (this bike originally had a much narrower aluminum bar; but I happened upon this bar as a replacement) that is OEM on Nishiki(s) along with the Dia Compe center pull (770) brake caliper and the classic Dia Compe lever with the "safety" bar. The 770 brakes are still available and a good compromise for those who want cantilevers but don't have the bosses. The OEM seat was shot and I temporarily replaced it from the old parts bin seat.

I really like the look of the Dia Compe brake hanger and release. Rust really hurt the aesthetics of these parts, but I managed to find similar replacements on Ebay. OEM Replacements. The difference may not seem like much, but in real life it was worth the $20 extra dollars. The original budget was estimated @ $100. The was pretty much dashed when it turned out both hubs need to be replaced; fortunately a friend supplied me with a front hub gratis. Also the original paint job was supposed to be rattle can. When that didn't work out the budget was blown out of the water when I deceided to powder coat the frame.

Rear hub- $ 40
spokes/nipples $ 20
cog and lockring $ 50
Powder coat $100
Brake hanger $20
Pedals $25

So we're looking @ $235.

Still not done.
Nope. Since these photos were taken I have already added a grip to the handle bars and will soon add the new pedals. Also the old tires are trash. Fortunately 27" tires are dirt cheap. Finally I took the bike by an LBS that has helped me with some parts. After much appreciated praise, he had a question of criticism; where's the leather saddle? And of course he's right. A true hipster bike needs a leather (aka brooks/ ) saddle. For a while I have had my eye on a brooks B-17 Special; green w/copper rivets in mind. While you may see them for $80, they are back ordered. A search found the best one in stock for about $100. So;

Brooks seat- $100.00
Tires-$16

All the above items are on order. So I am probably looking at about $370 after tax and license. I will add more photos when it's together.


And here they are! As finished as it's likely to get.





My first ride on these tires show this bike to be a pig. That's right, at only 63 gear inches (52/22) it's like riding through the mud on smooth pavement. Of course, that doesn't really matter, it's all about the joy of riding it. OTOH the Brooks saddle is surprizingly comfortable. I didn't really expect much, so I am quite pleased.

Sunday, December 30, 2007

The NJS Plan Changes

I'm still waiting for the fork to come back from the painters; turns out the powder coater does not have a pearl white, so they will paint it a standard white and send it to a "wet" painter to for a coat of pearl clear. Then there is the topic of the crank. As I explained in an earlier post, I bought a beautiful NOS Suntour Superbe Pro. Unfortunately it was only the right side and in 165mm. 165mm is certainly the perfect size for a track crank, but it's also close to track specific. Now the Suntour cranks is also NJS, which means it connects to an ISO bottom Bracket Spindle. For those of you that don't know, the Industry standard for most square taper spindles in the US is JIS (the use of the JIS standard for spindles was driven by Shimano, which is confusing since they used the ISO standard for everything else). ISO is used by Campagnolo and some older European component makers; it is also the standard used for most track gruppos. The two standards are not in-compatible; ISO is a little smaller than JIS, meaning if you slide a JIS crank arm on a ISO spindle, the crank arm will stop about 4-5 mm farther then where an ISO crank arm would stop. If you have a worn crank, then you may run out of spindle. This is where the 165mm length comes into play. I figured I just pick-up a left Campy crank arm until I could find another Superbe. The problem is (as I said) 165mm is usually made for track, so the only left crank arms out there are 170's. I ended up with a Shimano 165mm crank arm. It was a beautiful Dura Ace, but it is JIS. The crank arm was new, so difference on the spindle was an acceptable 3-4 mm. I rode it this way for a few rides, but the fact that my bike had mis-matched standards weighed heavily on my mind.

Most of the parts I have accumulated for this project has been from Internet stores. One I pointed out earlier, was Rider Paradise. Unfortunately this site has dwindled to offering no parts at all. To take it's place I have been checking out njs-keirin.blogspot and njsframes.blogspot. Finally I found a Dura Ace crank on njs-keirin. $207 (+$25 shipping) for the crank, pedals and NJS straps. This was a great deal. The Dura Ace track cranks are NJS and really, really nice; certainly as nice as the Suntour cranks and I have both arms! The pedals are MKS Custom Nuevo(s).

Unfortunately I made a small mistake. I noticed the spindle of the right pedal was hanging up a little. Most likely it's a slight manufacturing defect. I took the pedal apart and took a Dremal bit to the exterior plastic seal; I could see a small polished portion on the spindle where the two were rubbing. The Dremal seemed to do the trick. I then noticed the same problem on the left side. This time I had a problem with the bolt that attached the spindle to the pedal. The pedals have two cartridge bearings pressed into the body and the spindle slides into the bearings. The spindle is held in place with a allen screw. With the right pedal, I needed to put the allen wrench in a vise and turn the spindle with a pedal wrench to loosen it. With the left pedal it seemed to be taking more torque than the left; then SNAP! Oh no. It turns out the screw was left hand threaded. The following day was a waste of about 8 hours trying to locate a replacement screw. I ended up with three options. 1) Throw the pedals away and buy some Soma Hellyer (RX-1 copies) for $70 (my original plan before I bought the used Custom Nuevo(s). 2) njs-keirin.blogspot has a set of beat up RX-1(s) for $35 (plus $25 shipping). The administrator of njs-keirin.blogspot has offered to sell me the pedals at a discount. 3) I found a Web store that will sell me a new set of axles (w/ right and left hand threaded allen screws) for $45. While the third is not the cheapest alternative, it should solve the original problem of the bent axles, plus replace the broken left handed screw.

The choice was determined by njs-keirin.blogspot as they offred to sell me the pedals for $5 plus the $25 shipping. . At this point I must admit that these pedals are not for the Keirin bike. As mentioned earlier, I have already bought a new pair of MKS Custom Royal Nuevo pedals for the NJS bike. The Royal Nuevo(s) are different as they have loose ball bearings; very cool. The used pedal will be for the green machine (my first fixed gear bike). The only real issue will be if the axles are compatible. Custom Nuevo(s) and RX-1 both have cartridge bearings and I'm guessing the spindles (bolts) and bearings are the same. The RX-1(s) have a more abbreviated cage than either the Custom Nuevo(s) and the pedals have different thread pattern for the cages. Best case scenario is the spindles will not only be compatible but in better shape. Regardless all I really expect is a left handed bolt that will work. I'll advise.

Well it worked. I got the pedals in short order and the left pedal had the left handed threaded screw I needed. The Custom Nuevo(s) are now functioning and I have installed them on the green machine. The RX-1 left pedal is a different story. It looks like it was in an accident and then used as a fishing weight for a while; and were talking ocean fishing here. The right pedal on the other hand was in good shape. The two obviously have different histories. While were on the subject of pedals, I bought a set of Christopher toeclips and straps (white) and I plan on using these on the track bike. The NJS bike has has become more of a concept bike. At first the idea of building a bike that could certified and ridden on a Keirin track sounded cool. However, as I have putting the bike together, I realized it would lose all personality and end up being one of the hundreds that are lined up in the basement of a Keirin track waiting to be ridden. I think I can understand why the Keirin racers treat their bikes with so much disdain. So here is the current line-up.

Frame: Soma Rush 55cm
Fork: Threaded Tange steel
Headset: Tange Levin engraved
Bottom bracket: Shimano Dura Ace (NJS) cups/bearings; Campagnolo spindle
Crank: Shimano Track (NJS)
Pedals: MKS (NJS)
Toeclips/straps: Lapize
Handlebars: Nitto (NJS)
Stem: Nitto (NJS)
Rims: Tubular Araya (NJS)
Spokes/Nipples: DT 15g
Hubs: Suzue Pro Max (NJS)
Tires: Vittoria CX
Wheels: 3 cross front/ 4 cross rear
Cogs:18T (Soma), 16T (Shimano)(NJS)
Seat post: Soma
Seat: Soma
Brake caliper: Tektro
Brake lever: Soma

Still waiting for the fork, then ...

Thursday, November 15, 2007

NJS bike; What's going right; crankset (kinda)

When I was looking for a NJS crankset, I decided I did not want a Sugino; way too common. I was perusing ebay and found a Suntour Superbe Track Crank; but only the right side. It was NOS and absolutely beautiful, so I bought it. Why do I do these things. Had I waited I would have come up with a set, now I need to search (probably in vain) looking for the left arm. But in the mean time, I found a Dura Ace left arm, in 165mm (the same as the Suntour) That should work in the mean time. There was a problem with this plan however. The Dura Ace was JIS and the Suntour ISO. Now I knew this when I bought the Dura Ace, but it was only $25 and NOS.

When dealing with cranks and bottom brackets, usually there are problems. Since I was dealing with square taper, there are two standards, JIS and ISO. They are not incompatible, but they are different. JIS is the Shimano standard, except for track cranks. ISO is Italian and Track. These are generalities, but for the sake for this discussion it will work. The difference between the two tapers are the ISO is slightly smaller and shorter. Generally an JIS crank will mount about 4 mm farther on an ISO spindle (see http://www.sheldonbrown.com/bbtaper.html for more info).
I wanted to mount the crank on my fixed gear bike to see how it looked. I scrounged around and found a used bottom bracket with Shimnao NJS cups and bearings, and a Campagnolo ISO spindle. Track Spindles tend to be narrower than standard spindles, usually in the 107-108.5 range. This is meant to achieve a chainline of 42mm; this is compared to 46 mm of the standard road double. The Campagnolo spindle was stamped "68-SS-120". I am told this means the spindle is for a bike with a 68mm bottom bracket housing, a double chainring, with 120mm rear hub spacing.

The Spindle itself measured about 112mm. This would seem too long but it is asymmetrical. When installed in the proper fashion it would give you a 46 mm chainline, turn it around and the chain line was 42mm; nice! I put the whole thing together and it looked like this.


Since the Dura Ace arm was new, the difference on how far it mounted was only about 2mm. I also Dremel ('d) out the corners of the inside of the square taper so the crank could mount farther down the spline. Add that to the fact that the spindle was a little longer on the non-drive side and you have a perfect fit. If I someday do find a mate the Suntour right side I may go with an NJS spindle, but for now I'm quite happy with the result.
I've gotten the rear wheel back and it looks just as nice as before, but now it's 4 cross. I am also expecting the new Vittoria CX tires in the next 2 days' and Lickbike still hasn't credited my VISA (I think I'm done doing business with them). Next is the frame. I had toyed with the idea of getting a Keirin frame but all I would be doing is hanging my pretty new parts on a used banged up frame. Okay they are very nice, all lugged and custom made, but it wasn't made for me. It would just be one more Keirin track bike where I would have to compromise somewhere in the size and/or color. So I looked around and settled on a Soma; a 55cm in pearl white. I called American Cyclery (the Soma distributor in San Francisco) and they'll have one for me in 2 days. I told the wife and she wants a road trip to China Town (she's so good). The only custom part will be having the fork steerer cut and threaded; they come 1 inch threadless. I have a very nice Tange chromed steel headset I bought for just the occasion.

Brad

NJS bike; What's gone wrong; wheels and tires

Well it's been a couple of months since the NJS bike project started and not all has gone well. First let's talk wheels. As mentioned before I bought Araya Tubular rim 16B NJS 36H rims. To be NJS approved you must use tubular or sew-up or glue-on tires. The advantages are they are lighter, you can run at higher pressures and they have a very smooth ride. The down side is you have to glue them on. Also they are very difficult to repair and very expensive. Your typical NJS tubular runs about $100 as do most other brands of similar quality. The hubs I chose were Suzue Deluxe Pro Max. 36 hole. To be NJS approved a hub must use loose balls (no cartridge bearings) and be 36 spoke. That was pretty much all I knew at the time. I was also under the impression that the spokes should be straight 15 gauge and need to cross 3 times (and of course everything had to be NJS certified).

Well since then, I learned more. First the spokes can be only Hoshi or Ashahi (they are not stamped) and only 304mm or 305mm lengths for the rear can be NJS spokes certified. I have seen some supposed NJS wheels with butted or the infamous Hoshi bladed spokes. The Hoshi's are the only bladed spokes that can be used with standard hubs. The end has an S bend that allows you to insert them into the spoke hole in the hub. Unfortunately they are prone to break and I doubt they are NJS certified. OTOH it looks like butted spokes, I'm thinking 14-15-14 are allowed. Second the front wheel is three cross and the rear wheel is 4 cross. The spoke brand and lengths didn't bother me since Japanese spokes are impossible to get and are no better and probably inferior to the DT spokes used on my wheels. The rear 4 cross however was problematic. My bike builder would have had no problem lacing the rear wheel 4 cross and it is a detail like this that would have set the bike off for me; this would have to be changed (it was about a $50 mistake).

Next there were the tires. The tires I chose were Vittoria Corsa CR. The CR model go for about $50 @. They are a cheaper version of the CX which run about $80 @ (the CX are considered the industry standard). So the CR's are not top of the line but a good tire none the less. I also bought the tires from Lickbike.com for $40@. My experience with Lickbike has always been good. There store is based on the concept of quality over quantity. They pick the component or accessory they consider to be the best value over most the others and sell it for about 20% less than you'll kind it @ most other places. So I bought 3 CR tires, one for each wheel and a spare.

About a month later I see that the base tape is pulling away from the sidewall. I call Lickbike and they offer to send me replacements for the two that failed. I was not very happy with Lickbike wanting me to keep the third tire from an order of three, after the first 2 proved to be defective.

One issue with the tires is I used Tufo tape to mount them. Tufo tape is a 2 sided tape that is used instead of glue. The tape is cleaner and goes on faster than tape. The down side is, what was very difficult to repair, becomes impossible with the tape. The extreme tape has been know to tear the base tape off the tire (I used the standard). None the less, Lickbike requested I use the standard tubular glue with the replacement tires. Here I decided to kill two birds with one stone. After I pulled the defective tubulars off, I sent the rear wheel back to my tire guy to get it re-laced (4 X).

I then mounted the third of the original tire from the original order on the front wheel with the glue. I was not surprised when the base tape started to separate almost immediately. As I mentioned before, I returned the first two (after spending 2 hours pulling the Tofu tape off) and they replaced them. But after the third failed, I just didn't feel like wasting my time with what appears to be a hit and miss process, until I come up with 3 good CR model tires. They charged me for the replacement tires anyway, saying I would receive a credit when they received the return. It's been over a week and I have yet to see it (I even sent them back Priority). Lickbike sells the Vittoria CX's also for a good price ($70), so I boxed up the replacements with the third tire. I sent these Priority also and have requested a credit toward three of the CX's; since I've already paid for 5 CR tires, I'm almost there anyway.
At this point it a waiting game, Lickbike hasn't sent me the new tires and my bike builder is stilling working on the rear wheel. Knowing him he just waiting until he was the time, he can probably make them in less then 2 hours.
Well flash forward a week and Lickbike is out of the CX's of course. They have received all the returned tires and still haven't credited me; what's with that? They have lost my business for now and I have bought two CX's on ebay for the same price. I also see that riderparadise.com is selling CX's, $95 @ pair plus $10 shipping. A great price, but I don't trust them anymore. Turns out they gave me a "Neutral" rating after they failed to deliver on my order and gave them a Neutral. I guess thet fact that I paid immedatley for the product and waited 3 weeks without the product shipping only rated what I rated them. Plus I've noticed that riderparadise, has gone from a major Shimano/Nitto NJS store to almost no product and if you check their ebay rating them seem to loose every 10th order. Too bad, they had good prices and returned most my emails.
Brad

Sunday, October 21, 2007

The NJS Bike Part 2 and Headsets

Well pretty much every part but the frame has been purchased. I'm still waiting on riderParadise.com who is 3 weeks late with the Dura Ace chainring, cog and NJS chain. I was a bit concerned as they have a track record of losing orders from time to time and they recently have had practically no NJS parts left on their site. But, they immediately returned my email and said the parts will be re-shipped; I think that means, "Oops we didn't ship your order", but the price is good so I have hope.

Under the heading of new parts on an old bike, I have mounted some of the NJS parts on my the old green machine. So you don't have to look back it looks like this;

I call it my sanity bike and sent this photo to fixgeargallery.com; they have yet to post it but it's only been a couple of weeks. With the new parts I call it, what else? My insanity bike (the Green machines evil twin).


As you can see the brakes and the lights are gone. I also added a beautiful Chris King headset; in green of course.






The old headset was a Stronglight A9 that worked great, and would have probably outlived the frame. But because it is made of fairly soft aluminum and had come loose several times, it had become pretty nicked up. It also had this strange habit of not wanting to tighen up. I would have to over-tighten the adjusting ring, tighten the lockring and then loosen the adjusting ring into the lockring. After about 3 years of this, I finally figured out the lockring was galling against the aluminum washer between the two rings. Once I coated the washer with grease the problem went away. Unfortunately some damage had been done to the lower race (with a Stronglight the steel races are separate from the cups and come as two discs that sandwich around the roller bearings). The damage was minor and similar to the notchiness I've seen with cage ball bearing, but I did not feel any of the associated "indexing". Due to the fact that I have the same headset on my Peugeot, I bought two bearing sets in case I ever needed them. This is something I always do and generally find I end up replacing the part before or at the time I would need to re-build it. Anyway I sold the rebuilding kits on ebay a few days before I pulled off the headset; I actually made money on them too! The previous headset was a chromed Campagnolo that was started to suffer from what I previously called indexing and is also called "notchiness", this is why I went to the Stronglight.


From Wikipedia;


On bicycles ridden only in dry conditions and/or with fenders, the normal failure mode is a progressive notchiness in the steering, caused by pitting of the races. This is normally called "brinelling", although this stems from a misunderstanding of the cause; true brinelling is caused merely by pressing the ball axially into the race, and it is almost impossible to replicate this damage even by striking the fork crown repeatedly with a hammer. The pits are by far deepest at the front and back of the head tube, and are actually caused by flexing of the fork blades, which is transmitted to the steerer tube. This misaligns the bearings and causes "fretting", a small amplitude, large stress movement which tears metal from the races at the points where the balls rest.
The solution is to have a 45 degree interface in the headset where this flexing movement can be accommodated, preserving the relative alignment of the races and allowing the ball bearings to take pure axial and rotational loads. Shimano cartridge bearing headsets do this by allowing the cartridges to move relative to the pressed-in cups, while Stronglight roller bearing headsets, and most threadless headsets, now have loose upper and lower races which can move relative to the cups. Modern headsets, therefore, rarely suffer from "brinelling".


And from Sheldon Brown:


Roller Bearing
A bearing that uses cylindrical or conical rollers instead of balls. The major bicycle application of roller bearings is in some headsets. Roller bearing headsets are very long lasting, due to the greater contact surface area as opposed to ball bearings. Current units, however do not turn as freely as ball bearing headsets. This is due to the use of cylindrical rollers, rather than conical rollers. Cylindrical rollers do not naturally roll in a circle, but in a straight line.


For those of you that don't know about the Chris King Headset, they are way overbuilt and will probably outlast several frames. While there may be more innovative headsets, Chris King has certainly set the standard. From NYC Bike Snob;

Another financial investment. Regardless of whether they're worth the price, nothing inside our outside of cycling holds its value like these things. This is not an endorsement, it's just a fact. You can’t even get a used one cheap on eBay. I’ve tracked the retail price of these things over the years against the price of gold and the indices of all the world's stock markets and believe me when I say they offer a better return than any of them. As long as Mr. King successfully continues his anti-integrated headset scare tactics I’m putting all my money in his headsets.


Previously Ritchey made a their threaded WCS headset with needle bearings. This head set is no longer in production, but I believe it is the Ritchey WCS headset still sold by Rivendell. The only other headset I know of is the Woodman Saturn. The headset has a upper cartridge bearing on the top and a roller bearing on the bottom. I know nothing about this headset and it's only available as a threadless headset, but it looks interesting.

Brad

Sunday, September 23, 2007

The NJS bike..it starts

Yes, I decided to go for it. More than the Hipster draw, which is very strong by the way, it's the Retro-grouch part me that wants one. Most, if not all the bike will come from the internet/ebay. First we start @ Rider Paradise an ebay case store in Japan; I will be getting most the parts from here.

NEW NITTO PEARL Stem 25.4mm clamp 100mm NJS TRACK
NITTO TRACK BAR B125 Steel 25.4 clamp 400mm NJS B-125

The choices here were based on use; I'm actually going to ride this thing, probably do a Century on it. Very few folks can maintain the classic kerin drop for very long. The Nitto 123 bar drops 180mm and the 58deg stem gonna take it down another 2 inches. The Nitto 125 bar combined with the Pearl 71 deg stem is going to raise the bar 5 inches!! Oh yah.























Now, how about some wheels. First I got one of the best wheel men in the business. Combine that with Japan's traditional cheap spokes and nipples; this is one place I'm not going all NJS
World Class Cycles

Suzue deluxe pro max high flange 36 loose ball bearings no lockring 36 NJS




Traditional high flange loose ball hubs. I've got a set of the Campy loose ball hubs on my fixie and they are tits; but they require some attention. I'm going to be using a lot of Shimano Dura Ace track parts so I decided to go with the Suzues. The company closed it's doors in 2006 but they had a lot of stock. That stock is just now starting to dry up with these 36h Pro Max and the price is up to $275 a pair most places (one place has then @ $199).

NEW ARAYA Tubular rim 16B Gold NJS 36H 335g Keirin

Again from Rider Paradise. Here I had to make the jump to tubulars. I consdiered some Araya clicnchers I found on ebay; they were the old 20A hard anodized variety, but the history of bike racing was made on tubulars, and this was to be a retro-bike, so I decided to go for it. However this is where the NJS stamp stopped. DT Swiss spokes and nipples. These are them; very shiny indeed.
Viittoria Corsa tires, the best made.

Pedals, we are going to need pedals and clips; back to Rider Paradise

NEW MKS ROYAL NUEVO NJS TRACK pedals
NEW MKS Alpha Sport toe straps NJS keirin track Black






MKS toe clips are as good as I have ever seen (of course I had to buy them somewhere else but that's beside the point), but $45 for straps! Damn. Okay, they run about the same as Campy, but the Campy's aren't made any more. The Ale's are only $14 for christ sakes.

Now how about a crank. Checked ebay and found a NOS Suntour Suberbe 165mm Track NJS Crank; but just the right crank. It was so beautiful that I bought it. Now I need a left crank arm. This may be a year long quest, but most 165mm left cranks should work. There is the issue of ISO vs JIS. Most track components are ISO and most Japanese/American parts are JIS. The difference in the square taper is minimal, especially if it's new. I find NOS Dura Ace 165mm left arm for $24. When it arrived it I found it sat about 2 mm deeper on an ISO square taper axle than the Suntour crank; it should work fine.






Now how am I going to pay for all this stuff. Well, the Suzue hubs went on the credit card, but most the other parts are Paypal. I have dug through a lot of my parts bin and have been auctioning them off on ebay. So far the other stuff net cost has been about $100.

Just sold a bunch of stuff so it's time to go Rider Paradise again.

Currently I am riding with a 48:18 gear ratio. I expect that once I play around on the track I am going to want to increase the ratio but I still want to ride on the street. The Dura Ace Track cogs are pretty cheap @ $15@, but they only go up to 16T. I decided to start with a 46 tooth CR and 16T cog; I can drop down to 13T or anywhere in between later.


NEW SHIMANO Dura Ace TRACK CHAIN RING FC-7710 46T 1/8"
NEW SHIMANO DURA ACE TRACK COG SS-7600 16T 1/8" NJS























FTF (further to Follow)

Sunday, September 2, 2007

NJS -The Vanity Hipster

Japan Report: Fixed Gear Bicycles I'm starting this Blog off with a very well written article on "Bike Messenger Culture". Included is the following:

"Companies like Kalavinka, Nitto and Suzue, that produce relatively low-tech bicycle parts in today's high-tech bicycle world must realize that something's up because their products are selling out when normally they wouldn't be. The fact that these brands are enjoying success is definitely because of this latest trend sweeping Japan, but also because they hold the official NJS certification meaning that their bike parts are good to go on the Japanese Keirin circuit.

This NJS acronym has also enjoyed a newfound surge in popularity as they seem to be the gold standard for fixed gear riders; if it's good enough for Keirin riders, it's good enough for me, plus it's rare. You won't find a single NJS piece on Lance Armstrong's bike, or even keirin world champion Theo Bos's bike, but you will find it on every major street corner in Japan (as well as in SF and NYC), usually hooked up to a Kalavinka frame (also NJS and apparently one of the more popular frames), or on a Keirin track in Japan."


From my previous Blog "Why Single Speed #1":

In Japan they know how to be fanatics. They make rituals and religions about almost everything. There they have track bike racing called Keirin. It’s kind of a cross between horse racing and sumo wrestling. Check it out Every single part of the bike, every component, frame, wheels, spokes, chain, everything has to be approved with N.J.S. (Nihon Jitensha Shinkokai), the Japanese Bicycling Association, stamp of approval. The standard is almost the same as the Campagnolo ISO Track parts standard. There is another standard used by Shimano called JIS (Japanese Industrial standard). This standard has minor differences from ISO in the square taper interface between bottom brackets and cranks, and the frames have different size headtubes and fork races. This is different from the English/US Standard of ISO that Shimano builds for biikes here in the US. One of the primary reasons for NJS is so all the parts will fit together without concern for any discrepancies between standards. What a concept. Unfortunately it falls too short of this, but it does maintain a large margin of safety.

But NJS is so close. Imagine the holy grail of standards, where if the component has the standard stamp of approval, then interchangeability is assured. One seatpost size; 27.2 mm. Its the universal standard, why do you need 26.8 and 27. Seat rail distance, the universal standard is 44 mm and Keirin is 30mm, but NJS allows for both; choose one! But the worse is Shimano Octalink. It seems that Shimano no longer makes square taper DuraAce track cranks, they only come in Octalink; so now Octalink is NJS approved. Never mind that almost no Keirin will use Octalink, it just shows that even NJS has it's price. Still imagine NJS without these discrepancies(from Sheldon Brown).

1" x 24 tpi headset thread with loose ball bearings
1" (25.4 mm) handlebar/stem clamp diameter
1.375" x 24 tpi bottom bracket thread (left-hand on the fixed cup)
56 TPI spoke thread
1 mm axle thread
36 spoke loose ball bearing hubs
ISO square taper axles and cranks
144mm 1/8" chain rings
1/8" chains
1/8" cogs
9/16" pedal axle diameter
Loose ball bearing track pedals with toe clips
(27.7mm seatpost with 44mm seat rails)
(steel frame and fork).

Parenthetical added by me. There is of course alot more to NJS than interchangeability, but none the less it would be awful nice

From a couple of postings from fixedgeargallery; these were random photos taken in Tokoyo.

The next two are classic Vanity NJS bikes.

The Riddle Bike??

Quick rundown for the gear enthusiasts: 59cm c-c Jonny Cycles frame fork with a mix of Dedaccai OS steel tubing, Kalavinka lugs, fork crown and BB shell, and Jonny's signature track dropouts; Chris King 1" threaded headset, anodized Nitto Pearl stem (110mm) and Jaguar seatpost; Syntace Stratos 200 TT bars, Kashimax 5 Gold 4P Keirin saddle; Sugino 75 cranks (170mm) and 52t chainring; EAI 14t cog for the fixed/fixed rear hub (12t? or 16t? for the other side); MKS Custom Nuevo Pedals with Cinelli Toe Clips and Toshi Double toe straps; Izumi Model V chain; Blood Red 36h Phil Wood High-Flange track hubs laced to 700c Velocity Deep V's, rolling on 700c/23 Continental GP4000 clinchers; to top it all off the very elusive Green Tressostar cloth tape...

and the Jesse's Nagasawa


Nagasawa 56 cm all NJS except Velocitys, Campy BB spindle Phils and saddle. Seat post was signed by the Keirin rider. (Oooo!)

But this is what I want; an NJS Vanity is my next bike.

Thursday, August 23, 2007

Why Single Speed #1

To really under stand single speed you have to be kind of a fanatic about bicycling. Bicycling has to have a special meaning for you. I stopped a YWM (young white male) on a bike the other day as he was pedaling the wrong way on a one way street, at night without a light. He was riding an old single speed cruiser with cream colored fenders and big old chrome (non-functioning) headlight. I asked him how old the bike was and just stared at me and said, “It’s just a bike.” So I figured he stole it.

In Japan they know how to be fanatics. They make rituals and religions about almost everything. There they have track bike racing called Keirin. It’s kind of a cross between horse racing and sumo wrestling. Check it out Every single part of the bike, every component, frame, wheels, spokes, chain, everything has to be approved with N.J.S. (Nihon Jitensha Shinkokai), the Japanese Bicycling Association, stamp of approval. The standard is almost the same as the Campagnolo ISO Track parts standard. There is another standard used by Shimano called JIS (Japanese Industrial standard). This standard has minor differences from ISO in the square taper interface between bottom brackets and cranks, and the frames have different size headtubes and fork races. This is different from the English/US Standard of ISO that Shimano builds for biikes here in the US. One of the primary reasons for NJS is so all the parts will fit together without concern for any discrepancies between standards. What a concept. Unfortunately it falls too short of this, but it does maintain a large margin of safety.


Once you develop this fanticism of bicycling, single speed starts to make sense. No, it’s not for everyone or it may be for everyone but not all the time. But it is bicycling at its lowest common denominator. I have been riding my fixed gear almost on a daily basis since 2001 when I bought it from a neighbor for a couple hundred dollars. I have changed it over the years. First switched out the 140mm Salsa track stem for a more comfortable 100mm Cinelli, then I switched out the sewups for some clinchers and added front brake. It stayed in that configuration until this years when a pot hole took me down, broke 5 ribs and turned my handle bar and brake levers on a Beef-a-Roni (noodles and hamburger); too bad too, because the levers were some classy Campy Athena’s. I replaced the Bar and Stem with new Salsa and Cane Creek Brakes levers. The bike seems to fit me better now than it did before and I ride it everywhere. It goes to work with me, it climbs the local mountains, cruises the local farmland and has finished the Solvang Century twice. However what led to the fixie was a single speed mountain bike but that's another story.