Engineered for the rigours of mountain bike riding, this double chainset gives riders exceptional power, speed and torque on the most demanding of adventures. It features a unidirectional carbon crank arm construction, which means that you'll benefit from its incredible strength without adding any unnecessary weight to your ride. Coming complete with a rock-solid alloy core and CNC-machined alloy chainrings, this is a great choice of upgrade for riders who want a dependable chainset on the toughest rides.