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SHIMANO

SHIMANO GRX 820 12V Right Lever and Rear Calliper

Manufacturer ref.: IRX8202DRRDSC170A
The SHIMANO GRX 820 Di2 Right Lever and Rear Calliper sets a new benchmark for wireless electronic drivetrains in Gravel. Its DUAL CONTROL system... Read more
Regular price 9.071,00 CZK
Regular price Sale price 9.071,00 CZK
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Description

The SHIMANO GRX 820 Di2 Right Lever and Rear Calliper sets a new benchmark for wireless electronic drivetrains in Gravel. Its DUAL CONTROL system offers fast, precise and fully connected gear shifts, for a smooth experience on all terrains. With a battery life of 3 to 4 years thanks to CR1632 batteries, you benefit from lasting reliability and a clean cockpit.

The ergonomic hood of the GRX 820 has been redesigned to fit flared handlebars perfectly. Its raised shape, textured surface and non-slip coating on the brake lever guarantee optimal comfort and total control, even on the most demanding paths.

This model is compatible with the SHIMANO SW-RS801 satellite shifters and integrates the FRONT SHIFT NEXT function, allowing you to fully customise your gear shifting configuration to suit your riding style.

The GRX BR-RX820 brake calliper offers improved modulation, quieter braking and simplified maintenance. Thanks to its 10% additional pad clearance and its optimised bleeding system, it delivers power, reliability and control in all conditions.

Ref: 15660153110908

Technical information

- Right lever ST-RX820-R: Shift control type: DUAL CONTROL LEVER
Derailleur control: 12 Rear speeds
Cable lever side: OT-SP41
Cable rear derailleur side: OT-RS900 Length: 2200mm
Internal cable (polymer coating)
Brake hose (kit): SM-BH90-JK-SSR
Hose: 1700mm
Pipe connector: Straight
Hose colour: Black
Oil: SHIMANO Mineral
Reach adjustment: yes
Free stroke adjustment: yes
Bleed with funnel: yes
Technology: SERVO WAVE
Clamp diameter (mm): 23.8–24.2
Average lever weight: 283g

- Rear calliper: BR-RX820-R
Brake type: Hydraulic disc brake
Hose colour: Black
J-Kit version (OEM): yes
Resin pads with fin
Compatible rear mounting adapters: 10 / 15 / 20 / 25 / 30 / 35 mm
Recommended rotors: RT-CL800
Bleed system: ONE WAY BLEEDING
Mounting: Flat Mount
Pistons: 2
Calliper fixing bolt: 4 mm key
Anti-loosening method: Pin bolt
One-piece painted aluminium calliper
Weight (manufacturer): 136g

Price information

*Supplier recommended retail price in September 2025