Bottom Brackets

[juliancantride]

Just wondering is their anyway to run bmx cranks on a 73mm bottom bracket??

 

[Ivan]

Yep, depends on what type of cranks you have.

do you have a euro BB? what length is you axle? Normally you will only need a longer centre spacer.

 

[juliancantride]

Well they're Eastern Pro cranks and Eastern 720/Pro Euro BB. Not sure on axle size.

 

[Ivan]

Do they run a centre spacer? Do they have a lockring on the BB cups? the only thing you will need to account for in the extra 5mm in BB width, so if you need to run a spacer, you will need a spacer 5mm longer than your current one, or screw your BB in 5mm further (if you have the spare 5mm).

If you don't need to run a spacer you'll be fine, just as long as your not running an axle so short that your cranks won't clear the chainstays.

 

[juliancantride]

I see, thanks