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Brake levers
Shimano GRX BL-RX820-L Brake Lever
Left · brake only
Requires Companion Components
Individual left brake-only control requires a compatible right rear-shift/brake control; select both exact components to complete a mechanical 1x control set.
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
Retailer offers
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Technical data
Specifications
- Weight
- 222 g
- Control style
- Drop Bar Brake Lever
- Brake control interface
- Hydraulic Mineral Oil
- Included control sides
- Left
- Left control functions
- Brake
Catalog trust
Evidence and freshness
Technical-source dates and retailer offer checks are separate. A retailer check does not validate compatibility.
Report a correction- Technical review
- Jul 28, 2026
- Compatibility review
- Reviewed Jul 28, 2026
Approved technical sources
- Shimano BL-RX820-L specification
- productinfo.shimano.com/en/spec/gravel-brake-lever-hydraulic-disc-brakeManufacturerSource checked Jul 28, 2026Evidence reviewed Jul 28, 2026
- Y's Road BL-RX820-L exact Shimano package identity
- online.ysroad.co.jp/shop/g/g4550170173418RetailerSource checked Jul 28, 2026Evidence reviewed Jul 28, 2026