All around improved, the Shimano Ultegra BR-R8170 Hydraulic Disc Brake Caliper offers optimised dosing, quieter braking performance and extremely simplified maintenance. A faster-gripping initial braking force always gives the feeling of full control, while a 10% increase in brake pad spacing allows for a significant reduction in noise during braking, despite a flatter overall construction. When paired with the RT-MT900 brake disc rotor (sold separately), its deformation-resistant design helps create an extremely quiet and smooth braking system even with increasing heat.

To simplify maintenance, the hydraulic 2-piston brake caliper features the proven One-Way-Bleeding system plus a separate arrangement of bleed nipple and opening screw, minimising the risk of the bleed kit hose slipping off and removing the need to dismantle the caliper from the frame for bleeding.

Specifications
Brake caliper: aluminium (painted)
Pistons: resin
Compatibility - STI lever: ST-R9270, ST-R8170
Sub brake lever: BL-RX812
Brake disc: RT-MT800
Brake pad: K03S Resin, L03A Resin, L04C Metal
Brake hose: SM-BH90-J-SSR, SM-BH90-JK-SSR

Get quieter, more consistent stopping power with the Shimano Ultegra BR-R8170 Caliper, at CCACHE.