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Tweeks Cycles£59.50Visit shop Shimano BR-R7170 105 Hydraulic Disc Brake Caliper - Rear
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This guide is for road cyclists seeking reliable, low-profile hydraulic disc braking for their rear wheel. The Shimano 105 BR-R7170 caliper offers efficient stopping power in all conditions, featuring oversized ceramic pistons for heat insulation and an opposed two-piston design for optimal control and pad wear. A potential caveat is its specific flat mount design for 140mm rotors, requiring an adapter for 160mm rotors.
| Series | 105 |
|---|---|
| Model Part Number | BRR7170R |
| Brand | SHIMANO |
This caliper is designed for 140mm rotors. An adapter is required if you wish to use a 160mm rotor.
No, this specific model (BR-R7170R) is designated for the rear wheel. A separate front caliper model is available.
This caliper uses Shimano's non-corrosive mineral oil brake fluid.
The frequency of bleeding depends on riding conditions and usage, but generally, it's recommended annually or when the lever feel becomes spongy.
No, this caliper is designed for Shimano hydraulic levers and is not compatible with levers from other manufacturers like SRAM.
The oversized 22mm ceramic pistons provide excellent heat insulation, which helps prevent brake fade during prolonged or demanding braking, such as on long descents.
Typically, Shimano calipers are supplied with resin brake pads. Check the product packaging or description for confirmation.
The brake system may need bleeding. Follow the one-way bleeding procedure using genuine Shimano mineral oil and bleed kit.
Ensure the caliper is correctly centered on the rotor. Loosen the caliper mounting bolts slightly, squeeze the brake lever firmly, and retighten the bolts while holding the lever. Check if the rotor is bent. Confirm adequate pad clearance.
Check for contamination on the rotor or pads. Clean the rotor with isopropyl alcohol. Ensure pads are properly seated and not worn out. Bed in new pads and rotors correctly.
Inspect brake pads for wear and contamination. Check the hydraulic fluid level and condition. If the fluid appears old or discolored, the system may require a full bleed and fluid replacement.
Setup: This is a rear hydraulic disc brake caliper designed for flat mount frames. It is intended for use with 140mm rotors but can be adapted for 160mm rotors using the appropriate adapter (sold separately). Ensure compatibility with your frame's flat mount standard. Professional installation is recommended to guarantee proper alignment, hose routing, and connection to your hydraulic brake lever.
Compatibility: Requires Shimano hydraulic brake levers and hoses from compatible groupsets (e.g., R7100 series). Compatible with Shimano's 105 hydraulic disc brake systems. It is designed for use with mineral oil brake fluid.
Care: Regularly inspect the caliper and rotor for debris. Clean the caliper body with a soft, damp cloth. Avoid using abrasive cleaners or solvents. Periodically check brake pad wear and replace as needed. The bleeding process should be performed according to Shimano's service instructions using genuine Shimano mineral oil and bleed kits to maintain optimal performance and prevent contamination.
