Mechanics and Fixing Any Questions Answered

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gbj_tester in reply to @hippy

I always thought FSA MegaExo stuff was a weird diam, like 22mm at one end? This clearly says 24mm on the bearing cover and 24mm on the axle though so maybe I'm thinking of something else?

You're thinking of SRAM/Truvativ GXP. MegaExo is 24mm all the way through, and many people have put FSA/Vision MegaExo cranks through Shimano HT2 BBs and vice versa

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coventry_eagle in reply to @gbj_tester

HT2 on MegaExo is a tight fit but it will work with a bit of mallet tapping if needs must.

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gbj_tester in reply to @coventry_eagle

Is that a genuine tolerancing difference or just a slight bearing misalignment on particular bikes? Any of the external BBs other than Ultratorque can go from a sliding fit to a light press if the shell isn't faced parallel🙂

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