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seeking bb options: American aluminum bike ca.'92-'93

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seeking bb options: American aluminum bike ca.'92-'93

Old 09-05-15, 09:03 AM
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Bockman
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seeking bb options: American aluminum bike ca.'92-'93

so the bike pictured here until recently had a Magic Motorcycle vintage crankset with MM proprietary bottom bracket. One of the cranks became delaminated and cracked, so the owner is looking for good bottom bracket/crank options to get the bike up & running again. what info do we need to determine what the options are?

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Old 09-05-15, 09:25 AM
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Originally Posted by Bockman View Post
so the bike pictured here until recently had a Magic Motorcycle vintage crankset with MM proprietary bottom bracket. One of the cranks became delaminated and cracked, so the owner is looking for good bottom bracket/crank options to get the bike up & running again. what info do we need to determine what the options are?

Beauty!

Sheldon Brown's Bicycle Bicycle Bottom Bracket Crib Sheet has a good logical help page for determining what your options are. Is it threaded, unthreaded...

If it is ISO, American Classics made a titanium spindle, alloy cup sealed bearing BB that would certainly be in the right spirit.

Last edited by Last ride 76; 09-05-15 at 09:30 AM.
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