lankeman Posted March 1, 2010 Report Share Posted March 1, 2010 this could be simple answer..? Just bought a new bike and the BB is loose, I try to undo the crank bolts... they undo then tighten straight back up again both ways. Are these some kind of special cranks/bolts i dont know about? Threre try all cranks. cheers Quote Link to comment Share on other sites More sharing options...
sstein Posted March 1, 2010 Report Share Posted March 1, 2010 They might be slef extracting crank bolts which means that they are trying to pull off the cranks at the same time. Just keep turning anti-clockwise to loosen Quote Link to comment Share on other sites More sharing options...
Ben John-Hynes Posted March 2, 2010 Report Share Posted March 2, 2010 The threads in the BB may be damaged. Quote Link to comment Share on other sites More sharing options...
trialsrider.chris Posted March 2, 2010 Report Share Posted March 2, 2010 BIG hammer Quote Link to comment Share on other sites More sharing options...
Matthew62 Posted March 2, 2010 Report Share Posted March 2, 2010 Sounds like its threaded. Quote Link to comment Share on other sites More sharing options...
lankeman Posted March 2, 2010 Author Report Share Posted March 2, 2010 i cant see them being threaded because the bike it basicly brand new and bought from a bike shop. I hoping there self extracting one like sstein says. or if all else fails the big hammer will come out Quote Link to comment Share on other sites More sharing options...
ogre Posted March 3, 2010 Report Share Posted March 3, 2010 picture of the bolts? Quote Link to comment Share on other sites More sharing options...
lankeman Posted March 3, 2010 Author Report Share Posted March 3, 2010 sorted, they were self extracing bolts Quote Link to comment Share on other sites More sharing options...
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