SRAM Rival Black 10 Speed Rear Mech Supercharged shifting with bulletproof precision. Sacrifice nothing…not durability, dependability, or performance – nothing The new Rival rear derailleur matches SRAM’s Exact Actuation with tried and true competition proven design and construction. Exact Actuation delivers even gear changes over the entire shifting range via a precise 3mm adjustment from gear to gear. Maximized for 10-speed systems, the Rival’s design is descended from SRAM’s legendary MTB rear derailleurs. It weighs only 188g but features an all-aluminium B-knuckle inner link and cage that can stand up to any serious rider’s demands Features: Exact Actuation means precise, even gear changes throughout the shifting range Aluminium cage and inner link allow for weight savings with added structural integrityTechnology – Exact ActuationSpeeds – 10Weight – 188gMaterial – Aluminium B-knuckle, inner link and cageMaterial – Aluminium B-knuckle, inner link and cageBuy SRAM Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.