Shift/Brake Set Shimano 105 R7170 Di2 Left, 2-speed
Shimano 105 R7170 Di2 left set combines precise 2x12 electronic front shifting with powerful hydraulic disc braking for modern road bikes.
Overview
Shift/Brake Set Shimano 105 R7170 Di2 Left, 2-speed
The Shimano 105 ST-R7170 + BR-R7170 is a left-hand 2-speed Di2 Dual Control shift and hydraulic disc brake set designed for 2x12 road drivetrains. It combines fast electronic front shifting with a powerful flat-mount disc brake, delivering a clean cockpit, refined ergonomics and confident control in all riding conditions.
Wireless Di2 technology ensures lightning-fast and precise shifting with minimal effort. Reach adjustment allows riders to fine-tune lever position, while the updated brake system features a 10% wider pad clearance to reduce the risk of rotor rub. One-way bleeding and funnel bleeding compatibility make maintenance simple and efficient. The result is reliable electronic front shifting and powerful braking performance for pure road cycling.
- Application: Road
- Group: Shimano 105 Di2 R7100
- Model: ST-R7170-L + BR-R7170
- Type: Dual-Control (STI), Di2
- Mount: Left
- Front speeds: 2-speed (2x12)
- Reach adjustment: Yes
- Handlebar diameter: 23.8–24.2 mm
- Brake type: Hydraulic disc brake
- Brake caliper: BR-R7170
- Mount type: Flat-Mount
- Brake pads: L05A-RF Resin with Fin
- Brake hose: SM-BH90-JK-SSR front 1000 mm (cuttable)
- One-way bleeding: Yes
- Brake fluid: Shimano mineral oil
- Recommended rotor: SM-RT70, SM-RT64 (140/160 mm)
- Funnel bleeding compatible: Yes
- Brake hose fitting: Straight
