campagnolo-athena-aluminum-crankset-172-5mm-52-39-30-bottom-bracket-not-included
campagnolo-athena-aluminum-crankset-172-5mm-52-39-30-bottom-bracket-not-included, Forged aluminum crank arms, light weight hard anodized alloy chainrings and alloy chainring bolts. Utilizes Campagnolo's Power-Torque crank system.Features Campagnolo X.P.S.S. (eXtreme Performance Shifting System) featuring geometrically optimized chainring teeth. Optimized when mated to a full Campagnolo drivetrainPower-Torque system uses a single piece axle fixed to the drive-side crank arm which allows for simplicity and a light weight and rigid axlePower-Torque system have drive-side bearing pre-installed. The non-drive bearing comes pre-installed in the bottom bracket cupRequires use of Power-Torque bottom bracket cups