The DURA-ACE ST-R9120 hydraulic disc brake, dual control lever providing quick and intuitive shifting operation with a shorter lever stroke, redesigned internal shifting unit and lighter front shifting operation.
- SERVO WAVE
- Mechanical shift
- Hydraulic disc brake
- Mineral oil
- Consistent braking performance in all weather conditions
- Reach adjustment range (10.9 mm)
- Clamp band diameter – 23.8-24.2 mm
- Recommended brake caliper (not included): BR-R9170
- Recommended brake hose kit (not included): SM-BH90-JK-SSR
Specs
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