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Old October 19th 07, 02:17 PM posted to uk.rec.cycling
Rob Morley
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Posts: 7,173
Default Making a fixed-wheel bike

In article 1i68hif.8w2rf2p5k39cN%real-not-anti-spam-address@apple-
juice.co.uk, D.M. Procida
says...

I thought bending was bad for frames, and was not advised. In fact in
the days when six-speed hubs were new, I remember reading strong
warnings not to try forcing them to fit by bending.

Not generally a problem with steel (except perhaps for thin heat-treated
stuff like Reynolds 753). What you probably shouldn't do is to spring
the frame to fit a wider hub - this keeps it under constant tension and
may lead to weakening, while if you reset the frame it's a one-off
bending. You also need to make sure that the dropouts are parallel
after you've respaced them - an easy way to do this is to bolt a
(straight) axle into one side so it doesn't quite reach the opposite
dropout, and tweak it until it's pointing in the right direction, then
repeat on the other side. with single speed you obviously don't need to
worry about derailleur hanger alignment.
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