Technical & Reference Section > Tech and Restoration

3 peice crank fitting

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stfc:
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

pickle:
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:

stfc:
sorry should have been more specific, its an old school  sugino ct type with tioga coversion sealed bottom bracket.... axle is threaded ...thanks ..

stfc:
all done!

jackel:

--- Quote from: stfc on March 14, 2008, 05:44 PM ---all done!

--- End quote ---
:)piccies :)

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