french-style spindle, swiss bottom bracket :(
05-29-07, 04:58 PM
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french-style spindle, swiss bottom bracket :(
I am attempting to build up a fixed gear out of a peugeot frame, which frame has a swiss bottom bracket. The spindle it came with was quite a bit too long for my fixed gear chainline purposes, even with drive side reversed. Obviously a shorter spindle is in order! However spindles being somewhat difficult to find in bike shops, and used bike part stores (i.e. city bikes) being quite picked over when it came to the shorter spindle lengths appropriate for fixed gear, I turned to eBay... there I found a campy 109 mm spindle which the seller recommended for English or French bottom brackets, specifically mentioning that it was "for use with thin wall cups" such as are often found in french BB's. It wasn't too expensive so I decided to risk it. While it fit into my swiss BB fine, when I installed the cranks I could not fully tighten them without the crank rubbing into the side of the BB cups. AAARGH! So I am guessing my swiss BB cups are a bit thicker than that spindle is meant for, and so i lose some length which my cranks need to fully install?? Does that sound right? Will a spindle from an English bottom bracket work? Or do I need to find a spindle from a swiss bottom bracket? Any help is appreciated!!
Last edited by noahjz; 05-29-07 at 05:10 PM.
05-31-07, 04:44 PM
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Uh actually thinking things over some more it might be more likely that the problem is caused by using a japanese crank with a campy spindle? JIS v. ISO taper? I read somewhere that you need to maybe add a few millimeters to the spindle if you want to use japanese cranks with ISO tapered spindle. Anybody?
05-31-07, 07:31 PM
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Sheldon's explanation on ISO v. JIS
Thin vs. thick cups: As I understand, if you use a spindle made for thick cups with thin cups , when you tighten the adjustable cup it threads in too far. Conversely, if you use a "thin cup" spindle with thick cups, your adjustable cup will hang out a little farther than planned. So if your adjustable cup threaded in and your lockring is flush with the cup, you're OK in that area.
Thin vs. thick cups: As I understand, if you use a spindle made for thick cups with thin cups , when you tighten the adjustable cup it threads in too far. Conversely, if you use a "thin cup" spindle with thick cups, your adjustable cup will hang out a little farther than planned. So if your adjustable cup threaded in and your lockring is flush with the cup, you're OK in that area.
05-31-07, 08:19 PM
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I think you should use a Phil Wood BB and I just happen to have some unused stainless Swiss Phil rings and an installation tool I don't need. If you contact Phil, they can probably tell you exactly which BB you need. They've done it for me.
06-01-07, 04:10 PM
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Originally Posted by Dirtdrop
I think you should use a Phil Wood BB and I just happen to have some unused stainless Swiss Phil rings and an installation tool I don't need. If you contact Phil, they can probably tell you exactly which BB you need. They've done it for me.
