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Old 08-02-08, 10:28 PM   #1
grinderbob
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where to find a 123mm isis BB?

Need to be 68 x 123mm. Don't know who make them and where to get them.
FSA has some 73 x 123mm, does it come with a spacer to put on the drive side?
Any ideas? thanks!

Last edited by grinderbob; 08-02-08 at 10:37 PM.
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Old 08-03-08, 02:52 AM   #2
Maxwell
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Someone correct me if I'm wrong, but I think you can just put a 2.5mm shim on the drive side.

You might try asking in the mechanics forum
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Old 08-03-08, 07:20 AM   #3
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If I put a shim on the drive side, the drive/non-drive side would not be symmetric anymore.
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Old 08-03-08, 05:44 PM   #4
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well, the shell is 5mm too skinny, so you want to add 2.5mm on each side of the shell right? The non-drive side BB cup doesn't need shimming though, because it doesn't have a flange. Hence a single shim on the drive side.
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