Rival 1 Type 3.0 Rear Derailleur Fenders provides a better base and

provides a better base and more confidence when

Precision indexed shifting

Wide hookless rims create a seamless transition to the tire

Efficient shifting and smoother driving

Rival 1 Type 3.0 Rear Derailleur Fenders provides a better base andSRAM Road 10 and 11 speed compatible Exact Actuation for fast and accurate shifts using SRAMs 1: 1 actuation ratio (shifter cable travel : derailleur movement) X Sync pulley features a 12 tooth design that helps control the chains lateral movement Roller Bearing Clutch controls chain tension for consistent shifting X Horizon straight parallelogram design limits all movement to the horizontal axis, which makes ghost shifting impossible while also