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SHIMANO

Left Dropper Seatpost Control Lever SHIMANO GRX ST-RX820-LA

Manufacturer reference: ISTRX820LAI
The SHIMANO GRX ST-RX820-LA lever belongs to the 12-speed generation of the GRX RX820 range and stands out by integrating the hydraulic brake lever... Read more

Recommended price* : 234,95 €

Regular price 194,90 €
Regular price Sale price 194,90 €
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Description

The SHIMANO GRX ST-RX820-LA lever belongs to the 12-speed generation of the GRX RX820 range and stands out by integrating the hydraulic brake lever and dropper seatpost control into a single unit. Designed for single-chainring drivetrains, it eliminates the need for an additional dedicated handlebar lever, for a cleaner cockpit and simplified operation.

The hood ergonomics follow the GRX range design: a raised cover and textured surface limit hand slippage, while a non-slip coating covers the brake lever for enhanced control on rough terrain. The hood body has been optimised to fit flared handlebars, typical of modern gravel setups.

Hydraulic braking relies on SERVO WAVE technology, which quickly brings the pads closer to the disc before providing precise modulation of braking power. The dropper seatpost control operates via an Optislick cable with low galvanic coating for smooth routing and improved corrosion resistance, with a pull stroke of just 10 mm. A reach adjustment system, operated with a 2 mm Allen key, allows the lever position to be adapted to hand size.

Ref: 16112355672444

Technical information

Brand: Shimano
Range: GRX RX820
Product reference: ST-RX820-LA
Side: Left
Configuration: Hydraulic brake lever + integrated dropper post control (without shifting function)
Brake: Hydraulic, mineral oil, SERVO WAVE technology
Dropper post control: Optislick cable, 10 mm travel
Adjustment: Adjustable with a 2 mm Allen key
Compatibility: Mechanical cable-operated dropper posts, BR-RX820/BR-RX810/BR-R9270 calipers etc.
Recommended use: Gravel, bikepacking, 1x drivetrain

Price information

*Supplier recommended retail price in March 2026