[titchboy]

hi

i have a gt power series 08 and im wondering wot size bb it has please could you help me

here is a link if u wish to see the bike

http://www.evanscycles.com/products/gt/power-series-pro-2008-bmx-bike-ec000705

 

[eaterofdog]

Measure the outside of one on of the BB bearings (or get part number) and I can tell you.

 

[titchboy]

what do you mean ?

the bearing in the bb they are all in a metal ring about 10 of them i dunno

 

[eaterofdog]

Sounds like you have and unsealed bb and do not have a bearing to measure. Get the inside diameter of your BB shell in mm.

 

[zebrahum]

Sounds like a 1 piece crank. If it has cups that sit inside the frame you might be able to change things. What are you trying to do?

 

[titchboy]

its not one peice and its a big bb and it has no bit on it tht pop up if tht can help you

 

[zebrahum]

You're going to have to start communicating with real words and sentences please.

You still haven't said what information you need. Are you trying to replace it, or put a new crank on, or what?

You probably have a BMX euro size BB. Go to a bike shop, they'll help you figure out what you want.

 

[titchboy]

well its the same size of a one piece but it has 3 peice crank in it

 

[titchboy]

and im wanting to make it smaller

 

[jonKranked]

you want to make what smaller?


also, a good guide to the varying bb styles:

http://www.danscomp.com/serve.php?serve=faq&html=bb_diagram.htm

 

[titchboy]

thnks alot tht was very use full i found out its american size wich is big thnks m8