Brake Outer Casing Type:
Greatly reduces the force required to operate the brake lever and improves the response of the braking operation.
BC-9000: SLR-EV Brake Outer Casing for Road Bikes - Special grease and smooth inner liner provide high efficiency and low friction.SLR: Road Bike Brake Outer Casing - We use a rigid inner liner to provide good characteristics for road bikes.M System: Brake Outer Casing for MTB - A flexible inner liner is used to provide the best characteristics for MTB