Vaihdevipu Shimano GRX ST-RX820 12speed
Unmatched control and comfort for mixed-terrain riding and racing. The SHIMANO GRX DUAL CONTROL LEVER delivers light and responsive mechanical 12-speed shifting for mixed-terrain riding and racing. The ergonomic shifter design improves comfort by decreasing pressure on your palms, while the textured, anti-slip brake lever surface increases control on bumpy terrain.
- Greater comfort and control on mixed terrain
- Gravel-specific brake lever and bracket ergonomics
- Anti-slip coating on brake lever surface
- Optimized for use with flared handlebars
- SERIES GRX 12-speed
- DUAL CONTROL LEVER - BRAKE AND SHIFTING
- Compatible with 2x12-speed drivetrain system
- Hose joint: Straight
- Reach adjust
- Funnel bleeding
- Free stroke adjust
- SERVO WAVE
- Clamp band diameter: 23.8-24.2 mm
- Weight: 289 g
- Included shifting cable outer casing: OT-SP41 and OT-RS900
- Included shifting cable: Polymer-coated cable
- Recommended brake caliper (not included): BR-RX820
- Recommended brake hose (not included): SM-BH90-JK-SSR
- Recommended hydraulic brake oil (not included): SHIMANO Mineral
TECHNOLOGIES
DCL stands for DUAL CONTROL LEVER. It has brake and shifting functions in the system and enables easy operation. Ergonomic innovation is probably more critical to the higher standard performance than the added gearing. The shift internals borrow the robustness from our MTB technology and are so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of SHIMANO TOTAL INTEGRATION, and simply has to be experienced to be understood.
SERVOWAVE ACTION When you pull a SERVOWAVE brake lever, initial pad travel is fast, so little lever movement is needed to bring the pads into contact with the rotor. The power multiplication factor then increases rapidly at the pad-to-rim contact so more of the lever stroke is used to apply greater braking power with improved control.
REACH ADJUST Brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.
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