Campagnolo EKAR GT Crankset - 172.5mm, 13-Speed, 40t, 123mm BCD, Campagnolo Ultra-Torque Spindle Interface, Black

The Campagnolo EKAR GT crankset features two aluminum cranks that are fitted with Ultra-Torque semi-axles in AISI 630 steel, in line with the clever material combinations of the entire EKAR GT groupset, with a view to producing components that are always light but deliver maximum efficiency and durability. ProTech™ technology joins the two semi axles inside the bottom bracket, with a single sturdy screw. The oversize stainless steel bearing race is on the crank, fitted onto the semi axle for maximum smoothness and resistance – and to make it easy to access for inspection and maintenance without having to dismantle the cups. 2-piece aluminum crank arms with Ultra-Torque semi-axles in AISI 630 steel for strength and light weight. Semi-axles with Hirth ProTech™ technology are strong, efficient and self-aligning. Lightweight resistant chainrings in premium 7075 aluminum are easily interchangeable: simply unscrew them off the four arms of the crank with no need to dismantle the crankset. Optimized tooth design for efficient transmission and maximum chain reliability. The four arms are arranged symmetrically for optimum load distribution and have a 104 mm bolt circle diameter. 47.5mm Chainline. 151mm Q-factor.