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 SRAM 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….
– SRAM Rival 10 Speed Rear Derailleur – Med/Long Cage Rear Derailleurs – £44 (RRP – £)