Braking safely and shifting gears precisely on gravel bikes demands precision, especially at high speeds across unpredictable surfaces and varied terrain.
The Shimano GRX Di2 ST-RX825 electric shift brake lever paired with the matching RX825 BR-RX820 brake calliper delivers the comfort and control you need to master any unforeseen situation. This 12-speed right-hand setup combines responsive shifting with reliable stopping power, giving you the confidence to tackle gravel routes with ease.
Features
- Wireless Di2 Connectivity
- Clean cockpit: Wireless connection enhances the aesthetic of your bike while keeping shifting lightning fast
- Longer lasting. Uses two CR1632 batteries (battery life: 3.5 to 4 years)
- Three Di2 buttons per lever for E-TUBE PROJECT Cyclist app customization
- Compatible with satellite shifters
- Greater mixed-terrain control
- Gravel inspired lever and bracket ergonomics
- Anti-slip brake lever
- Same light shifting operation as top tier road systems
- Never hesitate to tackle rough surfaces
- Excellent heat dissipation
- ICE TECHNOLOGIES
- Flat mount
- Simple set up and maintenance
- Convenient tool access
- Easy hose joint system (J-kit)
- Simple wheel replacement
- Easy and clean bleeding system
- ONE WAY BLEEDING
Product features
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Use: Gravel, Cyclocross
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Group: GRX Di2 RX825
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Model: ST-RX825-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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Brake caliper: BR-RX820
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Brake mounting: Flat-Mount-R
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Brake pads: L05A-RF Resin with Fin
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Brake hose: SM-BH90-JK-SS
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One-Way bleeding: Yes
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Brake fluid: Mineral oil
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Recommended brake rotor: SM-RT64, SM-RT70, SM-RT800
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Compatible electric wire: EW-SD300
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E-tube Project: Yes
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E-tube port (pcs): 1
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E-tube connector (pcs): 0
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Di2 Wireless-Chip: Yes
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Battery: CR1632 x 2
Material
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Lever: Aluminium
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Caliper: Aluminium
Colour
Weight
- Approx. 208g ST-RX825
- Approx. 134g BR-RX820
Contents
- 1 x GRX Di2 ST-RX825 12-speed STI Dual Control right
- 1 x GRX BR-RX820 Flat-Mount Brake Caliper
- 1 x Brake Pads L05A-RF Resin with Fin
- 1 x Brake Hose SM-BH90-JK-SS
- 2 x Screw for brake caliper (38mm)
- 1 x Tube Joint Kit
- 2 x CR1632 Battery
The brake hose SM-BH90-JK-SS is filled with mineral oil and pre-mounted on on the caliper BR-RX820
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.
