Fulcrum Racing Torq R Cranksets are perfect for intense and persistent use, typical of enthusiasts of high caliber even if not necessarily athletes. Fulcrum cranksets feature the Campagnolo Ultra Torque system, the only one that can guarantee lightness, rigidity, simple assembly and maintenance.Steel chainring boltsFull carbon arm use a combination of multi-directional and unidirectional carbon fiberRacing-torq external bottom bracket cupsets are required and are sold separatelyOuter chainrings are ramped, pinned and optimized for Shimano and SRAM drivetrainsItem SpecificationsColorBlackWeight725gSpindle Interface TypeUltra-TorquePedal Spindle9/16"Bolt Pattern5-BoltChainring BCD135mmArm Length172.5mmRings39-53Crank-FD TypeRoad DoubleCrank Intended UseRoadChain CompatibilityShim/SRAM 10Defined ColorBlack