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eBay£168.99Visit shop NEW Shimano 105 ST-R7170 Di2 Double Hydraulic Disc STI Flat Left Mount Calliper
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The Shimano 105 R7170 Di2 Hydraulic Disc Brake Kit is designed for road cyclists looking to upgrade to professional-grade wireless electronic shifting and superior hydraulic stopping power. It offers unparalleled precision and intuitive gear changes for 12-speed drivetrains, providing a significant boost in performance for enthusiasts and racers alike. While the kit provides high-end components like the ST-R7170 levers and BR-R7170 calipers, users should be aware that it does not include rotors or adapters, requiring separate purchases to complete the installation.
| Model Part Number | R7170DRF |
|---|---|
| Brand | Shimano |
No, this kit does not include rotors or mounting adapters. These must be purchased separately based on your frame and wheel requirements.
No, the R7170 series is specifically designed for Shimano 12-speed Di2 drivetrains.
Use only Shimano genuine mineral oil for the hydraulic braking system.
The CR1632 batteries are located under the lever hoods; consult the official Shimano service manual for the step-by-step cover removal process.
The BR-R7170 calipers are designed for flat-mount interfaces only. You would need a specific adapter if your frame supports it, but it is not intended for native post-mount use.
Check the status of the CR1632 batteries in the levers and ensure they are properly seated.
The hydraulic system likely has air in the lines; perform a standard bleed using Shimano mineral oil.
Ensure the caliper is centered over the rotor and that the resin pads are not contaminated with oil or debris.
This kit is strictly intended for 12-speed Di2 drivetrains. Ensure your frame is equipped with flat-mount brake interfaces, as the BR-R7170 calipers are not compatible with post-mount standards. Setup requires careful bleeding of the hydraulic system using standard mineral oil procedures. Since the kit includes a 1000mm brake hose, verify your frame's internal routing requirements before shortening the lines. For maintenance, regularly inspect the resin brake pads for wear—especially if you ride in wet or gritty conditions—and keep the lever hoods clean to preserve the grip texture. Always replace the CR1632 batteries before they are fully depleted to avoid shifting failures on the road.
