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Thread: Broken bb

  1. #1
    exiled shinigami albyhellscream's Avatar
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    Broken bb

    My truvativ isoflow crank is making some weird noise.Sometimes when i pedal, i can hear a rather loud 'tud' sound coming from below. Could something be broken in there or is it just signs of wearing out?
    I'm fat,you are ugly.I CAN diet!

  2. #2
    Rat Bastard mcoomer's Avatar
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    Pull your crank and BB and check it out. Shouldn't be too hard to figure out what's broken.
    It's better to burn out than fade away...or slip out of your pedal and face plant on the side of the road!!!

    '06 Cannondale Prophet
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  3. #3
    Te mortuo heres tibi sim? scrublover's Avatar
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    yes. something could be broken in there. or it could be signs of something wearing out. based on the vague description, it would be pretty hard to diagnose what's going on...



    o.k. real answer. do you have tools/knowledge to take the cranks/bb off and out? yes? do so, and see what's up. no? either get the tools and either look on the web or in a bike repair book for the knowledge, or take your bike to a shop.

    is anything feeling loose, by hand or when pedaling? or just making noise? most likely either something is a) loose or b) broken/manked up bearings. if loose, a simple tightening may suffice, or the interface between the crank/spindle/bearings may be screwed. if bearings, you may either be able to replace the bearings, or may need a new bottom bracket. if something is messed up, replace with new.
    I believe the clouds in my coffee more than the weatherman on t.v.

  4. #4
    Non Tribuo Anus Rodentum and off to the next adventure (RIP) Stacey's Avatar
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    Sounds like OP needs a tudbuster!

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