SRAM Rival 22 WiFLi 11 Speed Rear DerailleurSRAM Rival 22 WiFLi 11 Speed Rear Derailleur When it comes down to performance and durability, the new Rival 22 rear derailleur matches the top end Force and Red derailleurs, with the only difference being a slight weight difference. The derailleur is constructed from an aluminium inner and outer cage as well as an aluminium b knuckle. Using Exact Actuation, each gear shift is fast and accurate, with the redesigned AeroGlide jockey wheels keeping