Odyssey 19mm Sealed Mid Bottom Bracket Bike Accessories Brand_Challenge *Optimized lightweight crank arm design

*Optimized lightweight crank arm design produces excellent power transfer efficiency*HOLLOWTECH II*Redesigned FC for greater frame compatibility*Rider tuned gear performance through various gear combinations*Wider gear pitch increases clearance between chain and leading teeth to provide compatibility with frames with O

dry and comfortable

providing a smooth and controlled ride on rough trails

HUBS: Quando alloy quick release

Odyssey 19mm Sealed Mid Bottom Bracket Bike Accessories Brand_Challenge *Optimized lightweight crank arm designSimple and easy to install. Includes an assortment of spacers to optimize chainline and crank clearance and an Odyssey 6061 T6 aluminum dust spacer. For press fit MID bottom bracket frames For 19mm crank spindles and press fit Mid BB frames Bore: 19mm . 750 BB Style: Mid Defined Color: Black