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
