Shift/Brake Set Shimano 105 R7170 Di2 Left, 2-speed

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