The Campagnolo Super Record EPS 12H Right Rear 160mm Disc Brake in black is a high-performance bicycle component designed for road bikes, time trial/triathlon bikes, cyclocross bikes, gravel bikes, and racing bikes. This build kit/gruppo includes a chain, derailleur (rear), crankset, power unit, cassette/freewheel, and derailleur (front), all made from carbon fiber, alloy, and carbon materials. With a 170mm item width, this set is specifically designed for Campagnolo brands and offers top-quality parts for enhancing your cycling experience.