Derailleurs BBB

The Rollerboys will make your bike ride so smooth that you will never stop anymore! The composite material is strong and durable and the special teeth pattern makes sure you can shift to a higher gear with the speed of light! High quality pulley wheels are a must have for every serious bike rider, with the RollerBoys you are good to go!Narrow Wide tooth profiling ensures ultimate chain retentionComposite material provided by EMS Swiss, with 40 % glass-fiber mixtureSealed bearingsCompatible with SRAM 1X11SpecificationsPulley size: 12TBearings material: CrMoGears: 11-speedCompatible with brands: SRAMNarrow / wide: YesPart materials: Grivory EMS
Original Colour by Producer: Black
Chain Gearing: …

##BBB RollerBoys Derailleur Pulleys The BBB RollerBoys Derailleur Pulleys are a set of replacement jockey wheels constructed from a strong and durable composite material. **Please note:** 11T SRAM - Compatible with the following SRAM systems: 9.0SL (?01/?02), 9.0 (?03), X.9 (?04), X.O, pre 2011 Force and Rival only.