Shimano GRX ST-RX810 - 11-Speed - Right Hand
Best current price£239.99from Condor Cycles
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Product Information
Full details
The Shimano GRX ST-RX810 mechanical shift and hydraulic STI lever is the premier choice for gravel riders and adventure cyclists who demand precision, ergonomics, and reliability in unpredictable terrain. This 11-speed right-hand lever delivers top-tier, smooth shifting and powerful hydraulic braking performance while reducing hand fatigue on long rides, though it requires a compatible hydraulic brake system and 11-speed drivetrain to function correctly.
All features
| Model Part Number | STRX810R |
|---|---|
| Brand | Shimano |
Extended Product Information
FAQs
Is this lever compatible with 10-speed systems?
No, the ST-RX810 is specifically indexed for 11-speed drivetrains only.
Can I use this with mechanical disc brake calipers?
No, this is a hydraulic STI lever and must be used with hydraulic disc brake calipers.
What type of brake fluid should I use?
You must use Shimano genuine mineral oil. Do not use DOT fluid, as it will damage the seals.
Does this lever include the brake caliper?
No, this product listing is for the right-hand lever only; calipers are sold separately.
How often should I service the hydraulic fluid?
It is recommended to bleed the brakes once every year, or sooner if the lever feel becomes soft.
Troubleshooting
Shifting feels heavy or slow
Check for kinks in the cable housing or replace the inner shift cable if it is frayed or oxidized.
Brake lever pull feels spongy
The hydraulic system likely has air in the line; perform a professional bleed of the brake system using Shimano mineral oil.
Lever slips during bumpy descents
Verify that the clamp band bolt is tightened to the recommended torque specification and check the hood position.
Pros and Cons
Pros
- Superior ergonomic design for gravel riding
- Excellent braking power and modulation
- Light and consistent shifting performance
- Durable construction for rugged conditions
- Anti-slip surface enhances control
Cons
- Requires professional installation for hydraulic bleeding
- Limited to 11-speed drivetrain systems
- Higher initial investment compared to mechanical-only brakes
Setup, Compatibility & Care
Setup Requirements: As this is a hydraulic STI system, installation involves routing brake housing, performing a hydraulic bleed with Shimano mineral oil, and precise cable tensioning for the derailleur. It is recommended to use specific Shimano SP41 housing for optimal shifting.
Compatibility: This lever is strictly compatible with Shimano 11-speed mechanical road/gravel rear derailleurs and GRX-specific hydraulic brake calipers. It is not compatible with electronic (Di2) systems or 10/12-speed drivetrains.
Care: To ensure longevity, keep the shift cables and housing clean. Periodically check the lever pivot point for debris. If shifting feels sluggish, consider replacing the inner gear cable and outer housing. If the brakes feel spongy, a standard bleed procedure is necessary to remove trapped air from the hydraulic line.