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Crank question

658 views 2 replies 2 participants last post by  noobie39 
#1 ·
What size crank should I buy for the Giant ATX Pro 15.5"?
 
#2 ·
Are you asking for crank length or BB size?

Crank length: most people/bikes use 175mm length arms, for more info see sheldon brown's site.

For BB: depends on what type (external/cartridge/etc) of crank you are getting. Most newer cranks use external bottom brackets. Shimano and Raceface external BB's (and others) are made to fit 68mm and 73mm BB's by using spacers. The ATX Pro is a 68mm BB (IIRC) so almost any external mountain BB would work.

Depending on your budget a shimano SLX 175mm crank would work well. When you buy the crank you (usually) get the BB included.
 
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