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Old 09-13-10, 09:22 AM   #1
rustmyrtle
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converting old schwinn with ashtabula BB to a cartridge BB

is this possible?
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Old 09-13-10, 09:28 AM   #2
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Not sure about a cartridge BB, but you can convert it to square-taper to allow different crank choices:
http://www.biketoolsetc.com/index.cg...d=YS-82WDOUBLE
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Old 09-13-10, 09:31 AM   #3
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Add a Conversion piece, it's 2 machined rings, that are pulled together with 3 or 4 bolts,
and the rings are threaded, and there is the shoulder on the rings that holds them in place..

For installing screw in BBs.. Any Bike shop should have a source for one..
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Old 09-13-10, 02:19 PM   #4
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fascinating. thanks!
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Old 09-13-10, 05:12 PM   #5
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Quote:
Originally Posted by fietsbob View Post
Add a Conversion piece, it's 2 machined rings, that are pulled together with 3 or 4 bolts,
and the rings are threaded, and there is the shoulder on the rings that holds them in place..

For installing screw in BBs.. Any Bike shop should have a source for one..
Any bike shop in the U.S. should be able to order this:
http://harriscyclery.net/product/tru...r2171-qc49.htm
or something similar.
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