RADBMX.CO.UK
Technical & Reference Section => Tech and Restoration => Topic started by: stfc on March 14, 2008, 02:27 PM
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bit of a dum arse question , but does it matter what side the collar sits on the axle on a 3 peice crank,as in what way does the axle sit in the bottom bracket, ie does the locking nut sit the arm side or the chain ring side
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what crank do you have mate?
with cranks such as Sugino CT it does as the spindle is threaded....but with modern 3 piece with sealed bearings you just put one bearing into the frame/cup, then put the spindle through with the spacer on it, then put the other bearing in so you end up with the spacer inside the BB. Then it's simply a case of using the spacers to get the right distance between frame and crank arms/sproket. the sproket goes on and tightens onto the drive arm of the crank.
hope this helps?
it may not and others might do a crank dofferently
if it's a modern crank then go onto youtube and type in how to bmx and there's a great bit about doing the headset and cranks on new bikes :daumenhoch:
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sorry should have been more specific, its an old school sugino ct type with tioga coversion sealed bottom bracket.... axle is threaded ...thanks ..
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all done!
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all done!
:)piccies :)