Box Two Oversized 30mm Alloy External Bottom Bracket Color:Blue Frame must be in good

Frame must be in good condition

precision sealed bearings

Ratcheting Fly Closure – allows for additional adjustability and positive closure for a secure fit

flexible pads giving you total comfort during any ride

Highly breathable open mesh

Box Two Oversized 30mm Alloy External Bottom Bracket Color:Blue Frame must be in goodThe Box Two Oversized Alloy External Bottom Bracket follows on Box's Oversized Technology engineering philosophy. Material is moved from low stress to high stress areas creating a bottom bracket with less deflection and more quickly applied pedal power. For this bottom bracket Box has toned down the Oversized Technology a little bit in relation to their top of the line M35 model. The 30mm cross section is designed to work with the other M30 components