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25.4mm road bar on 26mm quill stem...shims?(5 posts)

25.4mm road bar on 26mm quill stem...shims?treeman
Nov 5, 2002 2:45 PM
I know that Nitto makes expensive, hardened steel shims to mount a 25.4mm road bar on a 26.0mm quill stem. Does anyone have experience (good or bad) doing this? I also read about people cutting their own shims out of beverage cans. Is this feasible or is it suicidal? Thanks.
Coke can shimsbrider
Nov 5, 2002 2:49 PM
Done it. Worked for me. Takes a bit of fiddling. Not ideal, but can work.
thicker shim required...C-40
Nov 5, 2002 2:54 PM
A coke can is only .004 inch thick. A .012 inch thick shim is needed. Common aluminum flashing material is close to this thickness.
Rivendell sells that Nitto shim...retro
Nov 5, 2002 3:00 PM
it's 6 bucks, I think (way too much, and I think their minimum shipping is $7). I've had pretty good success just using aluminum flashing or whatever I had lying around. It's a pretty small gap with a pretty large contact area, which helps.
What about the inverse?...HAL9010
Nov 5, 2002 7:40 PM
What would be the problems with clamping a 26.0 raod bar in a 25.4 stem? Realistically, what would be the failure mode(s) If I am not jumping or slamming the bars, just road riding, not in competition. I want to put cowhorns on my MTN stemmed bike without having to spring for a new stem...