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  1. #1
    Junior Member
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    Oct 2008
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    Problem after installing cranks & bb

    So i am building up an IRO mk V. I got a miche bb and sugino zen messenger cranks. Last night i installed the bb and cranks and after i was done, i spun the cranks around to make sure everything was hunky-dory. When i spun it around there was a rubbing sound, and then the cranks would stop. I was once per rotation, and there was definitely more friction than there should be.

    I might have tightened the bb cups too much, but other than that i cannot think of anything.

    Any ideas?

  2. #2
    motovation frankenmike's Avatar
    Join Date
    Jan 2007
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    Dover, NH
    My Bikes
    rigid 29er moto, s-works stumpjumper fsr,black fixie,masi roadbike, ugly old hardrock commuter
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    Is it a loose ball BB? If so, it could be too tight or have incorrect 3 of ball bearings.

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