BBB Cycling 12 T SRAM Compatible Derailleur Jockey Wheels 11 Speed I Narrow/Wide With Sealed Bearings RollerBoys BDP 06

SRAM COMPATIBLE DERAILLEUR JOCKEY WHEELS: Suitable for a wide range of 11 speed SRAM systems SHIFT GEARS EFFICIENTLY: The Derailleur Jockey Wheels make shifting gears a breeze thanks to their 12-teeth pattern DURABLE: The derailleur jockey wheels are made of a composite material from EMS Swiss, providing more strenght than regular Nylon materials thanks to its 40% glass-fibre mix STEALTHILY QUIET: Sealed CrMo bearings make for a silent operation compared to pulley wheels without ball bearings GREAT CHAIN RETENTION: The narrow-wide profile of the derailleur jockey wheels gives incredible chain retention