The Shimano GRX ST-RX820 12-speed STI delivers the stopping power gravel riders demand.
Engineered for hydraulic disc brakes, this dual control lever provides excellent deceleration performance when you need it most—whether tackling steep descents, technical terrain, or unexpected obstacles. Responsive modulation and reliable power reserves keep you in control on every ride, giving you the confidence to push harder on mixed surfaces. Right-hand configuration for seamless shifting and braking integration.
Features
- Greater mixed-terrain control
- Gravel inspired lever and bracket ergonomics
- Anti-slip brake lever
- Same light shifting operation as top tier road systems
Product features
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Use: Gravel, Cyclocross
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Group: GRX
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Model: ST-RX820-R
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Type: Dual-Control (STI)
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Handlebar mounting: right
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Gear rear: 12-speed
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Optical gear display: No
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Lever reach adjust: Yes, with tool
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Handlebar diameter: 23.8mm/24.2mm
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Brake-type: Hydraulic Disc Brake
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Cable connection: Straight
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Recommended brake hose: SM-BH90-JK-SS
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Recommended brake caliper: BR-RX820
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Recommended brake rotor: SM-RT800 / SM-RT70 / SM-RT64
Material
Colour
Weight
Contents
- 1 x GRX ST-RX820 12-speed STI Dual Control Right for Hydraulic Disc Brake
- 1 x Gear wire (Optislick)
- 1 x End caps
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Weights are based off pre-production products at time of publication. Weights may vary in final production.
