The Shimano 105 ST-R7170 Di2 Shift/Brake lever features Di2 electronic shifting for precise intuitive gear changes to even more riders. The 105 BR-R7170 caliper features the Shimano Flat Mount System and its low-profile design that is ideal for road bikes.Reach adjustment and customized button functions allow you to dial in your ideal ergonomics Creates a clean cockpit with wireless connection and enhances the aesthetic of your bike while keeping shifting lightning fast Easily change button function with the E-TUBE app Includes 2 x CR1632 batteries 10% wider pad clearance decreases the chance of disc brake rotor rub Maintenance-friendly one way bleeding process Includes L03A Resin pads with finned alloy backplate
| Brake Lever Actuation | Hydraulic |
| Rotor Included | No |
| Brake Caliper Mount | Flat Mount |
| Brake Lever Use | Right |
| Rear Der/Shifter Compatibility | Shimano Road Di2 |
| Brake Type | Disc |
| Front Der/Shifter Compatibility | Shimano Road Di2 |
| Color | Black |
| Hydraulic Fluid Type | Mineral Oil |
| Pad Compound | Resin |
| Hydraulic Hose Length | 1700 |
| Includes Brake | Disc |
| Adjustable Reach | Yes |
| Defined Color | Black |
| keyword search | 105 |
| Position | Rear |
| Speed | 12-Speed |
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