Bike Forums - Chainline Help

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HookAsnooK

05-10-10 07:27 PM

Chainline Help

I am currently failing in my endeavor to go fixed.

I have a Schwinn World Sport from about 86ish. Currently I am trying to put an 1/8 crank on the old square taper bottom bracket. The rear hub is a flip flop hub. Currently the chainline does not line up at all.

Do I need a certain bottom bracket? Thanks for the help.

cnnrmccloskey

05-10-10 07:38 PM

Quote:

Originally Posted by HookAsnooK (Post 10792854)

Yes you need the correct spindle length which will depend on your crankset, the information shouldn't be hard to find.

HookAsnooK

05-10-10 07:46 PM

Thanks I've been looking into that.

HookAsnooK

05-10-10 08:04 PM

I've come to the conclusion that I need a 68 mm x 107(-110) mm bottom bracket. How do I know what the TPI is?

cnnrmccloskey

05-10-10 08:10 PM

Quote:

Originally Posted by HookAsnooK (Post 10793020)

I've come to the conclusion that I need a 68 mm x 107(-110) mm bottom bracket. How do I know what the TPI is?

What kind of frame do you have, its most likely english thread.

edit: dur its a world sport,than I am almost positive it is english threaded 1.370" X 24 tpi (I don't know why its underlining, but it wont stop)

Scrodzilla

05-10-10 08:48 PM

Pick up a 107mm Shimano UN-54. You'll be all set.

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