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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 05-10-10, 10:48 AM   #1
cleanupinaisle3
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Sugino 75s on Messenger BB and Vice Versa?

So I've got this KHS Flite with a 75 BB and cranks that I really want to put on my T1. My T1 currently has a Sugino Messenger setup. Is it worth for me to swap out the BBs as well? Will the cranks work on the other respective BBs, or am I being stupid and I should just swap the BBs as well?
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Old 05-10-10, 10:57 AM   #2
Squirrelli
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I believe Messenger uses a 103mm bottom bracket and 75 uses 109mm; don't be lazy and switch the bottom bracket as well.
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Old 05-10-10, 12:42 PM   #3
PedallingATX
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I use my Sugino 75s on a messenger BB and it works very well. Near perfect chainling. B/c the messenger bb is JIS, it's spindle is actually equivalent to a 107.5mm ISO spindle. That means your chainline should only be off by 1.5mm.

For more on ISO vs. JIS, check out Sheldon. I've been running this setup for a year with no problems.
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