Upgraded with a Titanium spindle. 3rd generation carbon crankset with hollow arm design. Oversized Ceramic Bearings. With truly nothing inside, K Force Light is a showcase for the amazing potential of composite materials. Hollow Carbon delivers the lightest, stiffest, smoothest and strongest components possible. The K Force Light also spins on ceramic cartridge bearings, making it more efficient than any other crankset availabe. Join the Ceramic Revolution! Hollow monocoque carbon crankarms. AL7075 100% CNC machined chainrings. AL7975T6 Torx T 30 chainring bolts. Includes MegaExo bottom bracket. Oversized ceramic bearings. 24mm integrated CroMo spindle. Anodized alloy external bearing cups. Carbon fiber 3K weave spider. 10spd. Chainline: 44mm.