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Looking for type and size Bottom Brack for a trek ex9 14' any suggestions would be helpful or webpages you could direct me to. If not maybe a vid to figure it out

Thanks in Advance
Mike/Asheville
 

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A BB has to fit two things, the frame and the crank. A press fit BB92 fits your frame. Assuming you have the stock Shimano crank with its 24mm spindle, you need a 24mm straight thru BB92. Shimano is very common, but there are many other brands.
 
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