BBB Cycling RollerBoys BDP-07 12T-14T Derailleur Pulleys - black

The durable and high-quality RollerBoys BDP-07 shifting cogs ensure smooth riding fun. The special tooth profiling was designed for even faster shifting and ultimate chain hold. Features of the BBB Cycling RollerBoys BDP-07 12T-14T Derailleur Pulleys compatible with SRAM 12-speed MTB narrow/wide tooth profile ensures ultimate chain retention composite material from EMS Swiss, with 40% glass fiber compound sealed bearings