The Shimano 105 BR-R7170 is the front hydraulic disc brake caliper from Shimano's R7100 road groupset, bringing trusted 105-level stopping power and easy maintenance to road and gravel bikes. Its low-profile flat-mount design keeps the front fork clean and compact, while wider pad clearance helps keep things quiet and rub-free.

Highlights

• Front flat-mount caliper from the Shimano 105 R7100 series
• Hydraulic actuation running on Shimano mineral oil
• Supplied with finned L03A resin pads for cooling and quiet running
• Around 10% wider pad clearance to reduce rotor rub
• One-way bleeding for simpler, cleaner maintenance
• Includes front fixing bolt and a 140/160mm flat-mount adapter

Confident, controlled braking

The BR-R7170 delivers the smooth, powerful modulation road riders expect from Shimano hydraulics. The finned L03A resin pads dissipate heat to help resist brake fade on long descents and keep braking quiet in day-to-day use.

Built for easy living

Wider pad clearance reduces the chance of rotor rub after a wheel change, and Shimano's one-way bleeding system makes servicing the hydraulic line cleaner and more straightforward.

Compatibility & fit

This is the front caliper, designed for flat-mount forks. It is supplied with the front caliper fixing bolt and a 140/160mm flat-mount adapter. It runs on Shimano mineral oil and pairs with Shimano Center Lock road rotors. In the standard Australian setup, the front brake is operated by the right-hand lever, so this caliper is plumbed to your right ST shift/brake lever. Designed to pair with Shimano 105 R7100 hydraulic levers; check your fork's flat-mount specification and rotor size before fitting.