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BMX General => BMX Chat => Topic started by: southern andy on December 19, 2007, 08:50 PM

Title: Silly question time
Post by: southern andy on December 19, 2007, 08:50 PM

Sorry chaps, please excuse my ignorance, new to this game again.

Ok, bottom bracket size.

I see on E bay and on other sites, that when one is advertised the seller puts in Euro or USA. I'm assuming they are both different sizes. Are all BMX bottom brackets on a frames the same size ?? So would a USA bottom bracket fit into a standard BMX?? or is it just the cranks that have too match the said bottom bracket.

Have i explained myself correctly, i think i've just confused myself big time now.

Title: Re: Silly question time
Post by: Trev on December 19, 2007, 08:55 PM

different frames take different style bottom brackets.
you will need to check what type yours takes.
i believe the old style is the US BB, but now you also have Mid, Euro & Spanish.

Title: Re: Silly question time
Post by: SaMAlex on December 19, 2007, 09:01 PM

This is a cool site, and if you scroll down a bit there is a big section all about BBs. I dont totally agree with what he concludes but it shows all the sizes nicely.

http://www.assblasters.org/

The name is missleading, its not porn!