Done!
Monday, June 23, 2008
The NJS Bike Part 3
Done!
Monday, February 4, 2008
The Soma Bike is Done!
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.
Sunday, January 20, 2008
The Nishiki conversion; it lives!
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.
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
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.
Sunday, December 30, 2007
The NJS Plan Changes
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)
NJS bike; What's gone wrong; wheels and tires
Sunday, October 21, 2007
The NJS Bike Part 2 and Headsets
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;
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
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

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.
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

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.

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

Sunday, September 2, 2007
NJS -The Vanity Hipster
"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.
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
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.

