Shift/Brake Set Shimano 105 ST-R7170/BR-R7170 Di2 Right, 12-speed

Shift/Brake Set Shimano 105 ST-R7170/BR-R7170 Di2 Right, 12-speed

The Shimano 105 ST-R7170 + BR-R7170 is a right-hand 12-speed Di2 Dual Control shift and hydraulic disc brake set designed for modern 1x12 or 2x12 road drivetrains. It combines fast and precise electronic rear shifting with a powerful flat-mount disc brake for a clean cockpit and confident control in all riding conditions.

Wireless Di2 technology delivers lightning-fast shifting with minimal effort, while the advanced hydraulic brake system provides strong and consistent braking power. Reach adjustment allows riders to fine-tune ergonomics, and the one-way bleeding system ensures simple and maintenance-friendly servicing. The result is precise 12-speed shifting and reliable braking performance for today’s road bikes.

• Mount: Right
• Rear speeds: 12-speed
• 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 rear 1700 mm (cuttable)
• One-way bleeding: Yes
• Brake fluid: Shimano mineral oil
• Recommended rotor: SM-RT70, SM-RT64 (140/160 mm)
• Brake hose fitting: Straight
• Body material: CFRP (Carbon Fiber Reinforced Polymer)
• Lever material: Aluminium
• Caliper material: Aluminium