Campagnolo Record Crankset

"Finite element model analysis (FEM) was used extensively to arrive at the design and materials for the Record crankset. The cranks are cold forged for increased hardness and strength. The chainrings are jewel-like gorgeous, but they're a lot more than gorgeous: they are designed to work structurally with the crank arm as a single unit and are designed and machined for maximum rigidity and precise shifting. Light alloy fixing bolts and nuts, Exa-Drive chainrings, requires bottom bracket with 102mm axle. 39/53t. 10 Speed. Choose 170mm (012-70), 172.5 (012-725), or 175 (012-75). Weight: 500g."