powerz Posted February 12, 2007 Report Share Posted February 12, 2007 (edited) Hii have a mate who is just getting into trials, he has a mission prodigy 20" mod and needs the crank bolts which hold the crank arms on,but what size bolts does he need? M12 which are on order @ tarty or M15.All i know is it's a isis BB but i dont know the make.Thanks for any help. Edited February 12, 2007 by powerz Quote Link to comment Share on other sites More sharing options...
Ash-Kennard Posted February 12, 2007 Report Share Posted February 12, 2007 i would imagine it to be m15, unless it is a dirtjumping/freeride bb Quote Link to comment Share on other sites More sharing options...
powerz Posted February 12, 2007 Author Report Share Posted February 12, 2007 i would imagine it to be m15, unless it is a dirtjumping/freeride bbRight o.k cheers, sorry i cant give any more details on the BB. Quote Link to comment Share on other sites More sharing options...
Louth Trials Posted February 12, 2007 Report Share Posted February 12, 2007 (edited) Right o.k cheers, sorry i cant give any more details on the BB.nah then mate i have some isis m15 crank bolts from a monty isis bb let me know if want them? through pm Edited February 12, 2007 by monty ryder Quote Link to comment Share on other sites More sharing options...
powerz Posted February 13, 2007 Author Report Share Posted February 13, 2007 May sound abit dum here but how do they measure the m15 or m12 is it the width of the bolt or length? :$ Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted February 13, 2007 Report Share Posted February 13, 2007 Its the external diameter of the thread Quote Link to comment Share on other sites More sharing options...
powerz Posted February 13, 2007 Author Report Share Posted February 13, 2007 Its the external diameter of the thread O.K cool cheers for that, that means he needs m12 then, Thanks again Quote Link to comment Share on other sites More sharing options...
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