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how can i take an crank off a bmx bike an put it on a mountain bike? Answered

how to change the things on my bike

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frollard
frollard

Best Answer 11 years ago

There are 3 types of cranks on bicycles (that I can think of) One piece units are one solid bar with 2 bends - usually on cheaper/kids bikes - not easy to transplant because the bar has to thread through the bike frame. Cranks that bolt on with an axial nut - a 3/4ish nut that threads directly onto the crank axle. The nuts are goofy - if I recall one is right threaded and the other is left threaded. This is so that it doesn't unscrew with the constant 'forward' rotation of the axle. i.e. on the left side it is a left-handed thread, on the right side it's a right handed thread. Sometimes they are both left handed threads. Cranks that have a nut and bolt that tighten the crank's grip on the crank axle - loosen those and take the crank off.

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tj1796
tj1796

Answer 11 years ago

well thanks for your help man

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frollard
frollard

Answer 11 years ago

You're welcome - if it is, please don't forget to mark answered!

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genhalftrack
genhalftrack

10 years ago

Hi, the best piece of advise anyone could possibly give someone asking a Bicycle question is to "refer to Sheldon Brown's articles". Go to 
http://sheldonbrown.com/articles.html  A real Guru in bike savy with common, easy to understand explinations and descriptions.  

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sharlston
sharlston

11 years ago

what type o crank does it have some really big nuts on the outside?