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What diameter/thickness tubing for curved seat stays?
This is basically a follow-up to my post last week on how to bend in 2 dimensions. I think I have a process that will work, thanks.
I've rolled some 5/8" (16mm) x .035 4130 straight guage to use as curved (cruiser-style) mtb seat stays. I notice with the long rolled piece (6'), that it's fairly flexy along the curved axis.
Will this be sufficient for mtb seat stays? Would 3/4" x .035 be better? Or does cutting down the long piece into a useable length create adequate rigidity?
It's hard to tell from pictures what others are using, seems to be a mix of 16mm and 19mm, and of course tapered tubes.
I've used 16mm x .035 rolled as curved stays on a previous bike that's still kicking along after 2-3 years. My concern is more with the long-term durability of the chainstays from flexy seat stays.
I acknowledge that this is a very subjective question. But wanted to get opinions/experiences from a group that's been around the block with this issue. Thanks.
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Re: What diameter/thickness tubing for curved seat stays?
.625x.035 is Perfect . .028 would probably be fine too but it doesn't bend with as much success as .035.
As far as being flexy, cut it down to size,weld it into a triangle shape and see if you still feel the same way....
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