Wide range 9 speed multi-shift group with up to 3 gears per shift Includes cassette, rear derailleur, shifter and chain Ultra-wide ratio with consistent progression Cassette features durable lightweight unibody construction and lightweight internal support disc Shifter offers 2pc pull lever with up to 3 gears per shift Carbon fiber / nylon composite, steel, aluminum alloy Hard onyx finish Onyx BlackUPC/EAN/GTIN: 639266097457