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 ...
Friday, December 28, 2007
The Nishiki Conversion
Now the frame. I gave my son the choice of color; almost. He gets up to three picks and can veto 2. His first choice was green, but I have a green bike already so we ended up with copper. I worked for 15 years in a paint shop so I have my standards. Still I figured I could do a rattle can job that would look nice. I bought some Rustoleum paint and soon found out the limitations. Turns out Rustoleum paint is not compatible with any paint containing acetone; and of course I used a primer with acetone. The paint wrinkled up in a number of spots, but they sanded out okay and I put on a couple coats of clear. Unfortunately I missed one spot with the copper behind the seat tube and when I tried painting over the clear, it was a disaster.
Granted they are a slightly different design, but the chrome is still intact and they still have a the old style release. At this point there are some decisions to be made and possibly a few more upgrades. The high point here are the wheels; I laced and trued the wheels myself. First time. Cool.For Part 2 go to The Nishiki Conversion; it Lives!
Wednesday, November 28, 2007
The NJS Part 3; Threadless Steerers suck..
I have decided to go with a Soma Rush frame. The price is right ($375) and I can pick one up in San Francisco (road trip) and they come in Pearl. At first I thought of going with a Soma fork but two things turned me off. #1, they don't come in Pearl; Red, Black or Chrome. Okay maybe the Chrome would work, but I wanted Pearl. #2 they only come threadless. No matter what you choose, aesthetically a threadless fork on a road bike, especially a track bike looks like a compromise. A quill stem simply belongs on a track bike. The only reason for unthreaded forks on metal road bikes is money. Threaded steerers have to come in different sizes to match the head tube, threadless is one size fits all. But that does leave me in need of a threaded fork. Once again Paul @ Rocklobster is going to bail me out. Apparently, back some years, Kestral went from steel to carbon fiber forks. Paul bought up all there stock of Tange steel threaded forks. He going to give a great deal on one and after a trip to the powder coater, I figure it will cost me about 1/2 the cost Soma fork. As a matter of fact, for a few dollars more, Paul would have made me a fork, which I figured was overkill for the frame.Thursday, November 15, 2007
NJS bike; What's going right; crankset (kinda)
NJS bike; What's gone wrong; wheels and tires
Sunday, November 4, 2007
Solvang Prelude, Nov 3 2007
1)My best friend Mike’s new Fetish fixie; red with ENO cranks and Mavic track wheelset. I hate the term but that is a sweet bike.
2)My ill-conceived attempt at using toe-clips. I bought some Soma double straps and double toe clips. The shoes where some Adidas Classic Pro with MKS toe Clip cleats. First the cleats were almost impossible to insert while riding. Second the straps are the new Vegan style (I’m not kidding). They are 1/3 thicker than standard laminated straps and nowhere near as nice as the MKS (NJS) version. It was all I could do to thread them through the pedals and then they started delaminating. They will go back to Soma and from now on it’s back to Look pedals for me.
3)The third was the ultimate flat tire story. After only 10 miles I got a rear flat tire (I rarely get flats and never at Solvang). I pulled over and after removing the tube, pulled out my Zepal frame pump (the best blankity-blank frame pump on the market; I'll explain later) Anyway, this was the first time I had used the pump and it was set in the Schrader mode. As I open up the nozzle to switch the innards, the pin on the lever popped out into the brush on the side of the road. The best blankity-blank pump on the market was now the best blankity-blank expandable dog club on the market. One thing about roadies, is they always want to be sure you have everything you need to fix a flat. Even on a sponsored ride, everyone of the 2000 riders ask, “you all right?”, “got everything you need?”, “need any help?”; “yeah, yeah, no… “ Anyway, the first person I actually said, “need pump” to was a portly Hispanic guy named “Ramon”; a very helpful fellow who seemed to be an expert on my Zepal pump; “best blankity-blank frame pump on the market”. So, while I was trying to use the 10 inch frame pump he was carrying, he miraculously found the pin for my pump! I would have kissed him if I knew him better. Anyway, after too many “Dude you rock” and “Viva la Raza’s”, Ramon was on his way and so was I; for about 50 feet, when my tire went flat again. Humph. About this time Mike showed up, coming back from the top of Ballard grade (Had I known how far back you were I would have just waited for you). Also, the sag wagon arrived with Mr Blankity-blank (the kind that uses blankity-blank as a verb).
So you got a blankity-blank flat tire, too blankity-blank bad. Do you need a blankity-blank tube? Oh you got a Zepal pump? Best blankity-blank pump on the market. I tell Mr Blankity-blank that I just fixed a flat and I suspected there was something in the tire I missed. He looked at the tire and pointed out a small hole left behind by some long since removed road hazard. Well there’s blankity-blank problem, you see that blankity-blank hole? Your blankity-blank tube will get sucked into that blankity-blank hole and cause a blankity-blank flat; that’s what you call your blankity-blank pinch flat. You’re gonna need to put a blankity-blank patch on that hole. Mr blankity-blank then pulls out a bag full of tubes and as he goes through them he starts yelling out, “What the blankity-blank is this? They send me out to help these blankity-blank riders, and all I got is blankity-blank mountain bike tubes!” About this time some rider stops behind the SAG wagon and asks to use a pump. “Hold you blankity-blank horses and I’ll get you a pump” and Mr Blankity-blank then walked to the rear of the SAG wagon and out of sight. It was at this time I discovered there was a passenger in the SAG wagon. I never saw him, but I heard this phantom voice say, “Yep you got yourself a pinch flat”.
Mr Blankity-blank then returned complaining; blankity-blank, they gave two blankity-blank pumps that don’t work, hey buddy, can I use your blankity-blank pump? A Zepal, best blankity-blank pump on the market. I then handed the pump to Mr Blankity-blank, and he disappeared behind the SAG wagon again. While we were waiting for Mr Blankity-blank to return, Mike dug a small piece of glass from my tire and managed to find the holes in both tubes. I patched the tubes, re-mounted the tire and put in one of the patched tubes. Mr Blankity-blank returned and asked if I wanted to buy a patch; I said no. Well, it blankity-blank looks like you know what you’re doing, with that blankity-blank pump and all, I’ll be blankity-blank on my way. As the SAG wagon pulled away, Mike finished pumping up my tire. As he pulled the pump off the valve stem, I hear this psssssssssssssssssss; what the blankity-blank was that? Ahh, the valve stem just broke off; blankity-blank? Turns out Mike had a brand new tube that we installed and there were no more tire problems for the rest of the ride.
We had a great time and will be back in March for the Century. Hope you had a blankity-blank good time reading this and remember it’s all about the blankity-blank ride!Brad
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