Thread: BB Spindle Lengths
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Old 01-11-18 | 10:13 AM
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ThermionicScott
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Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)

Originally Posted by MePoocho
I have recently replaced my caged bearing BB with a Shimano UN-55 square taper. I also replaced my three ring crankset with a compact 34T-50T two ring. In the rear I run a Shimano 13T-26T seven speed cassette.

Suggestions will be welcomed because I don't want the order several BB's trying to reposition my crankset. Large 'thanks' for advise........
Since not all cranksets use the same BB length, it's very important to find out what BB length your crankset needs. The manufacturer should provide this info without any need for you to go off measuring and guessing -- which crankset did you buy?
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