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
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
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