Shimano Ultegra BR-R8170 Disc Brake Caliper

The 10% wider pad clearance creates more space between the brake pads and the rotor. This significantly reduces the chance of rotor rub and annoying brake squeal, resulting in a quieter, smoother ride.

The BR-R8170 is specifically designed for use with Shimano ST-R8170 hydraulic brake levers. It is not guaranteed to be compatible with other lever models, so you should stick to the R8170 series for optimal performance.

For the best performance and safety, this caliper is optimized for use with Shimano RT-MT800 or RT-CL800 rotors. While other Center Lock rotors might physically fit, these specific models ensure the best braking modulation and heat dissipation.

Yes, Shimano refined the bleeding process on this caliper to be more user-friendly. The design allows for a more straightforward maintenance routine, making it easier to remove air bubbles and maintain a firm lever feel at home.

This caliper is compatible with Shimano K05S-RX, L05A-RF, and L04C-MF brake pads. These options allow you to choose between resin or metal compounds depending on your preference for stopping power and longevity.

Like all Shimano hydraulic disc brakes, this caliper requires Shimano mineral oil. Do not use DOT fluid, as it will damage the internal seals and compromise the braking system.