Shimano ST-RX815 GRX DI2 11-Speed STI

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Price last checked: 17/10/2026

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Shimano ST-RX815 GRX DI2 11-Speed STI

The ST-RX815 GRX DI2 STI Bled With BR-RX820 Calliper - Right Front is a 11-Speed Shimano shifter from the GRX groupset. It uses Shimano's Di2 electronic shifting. It uses a Flat Mount interface. Key Features Shimano GRX, with its gravel specific ergonomics, optimised gearing options, rugged reliability, and qui ...
The ST-RX815 GRX DI2 STI Bled With BR-RX820 Calliper - Right Front is a 11-Speed Shimano shifter from the GRX groupset. It uses Shimano's Di2 electronic shifting. It uses a Flat Mount interface. Key Features Shimano GRX, with its gravel specific ergonomics, optimised gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world GRX hydraulic disc brake 11-Speed Di2 STI's give you control, modulation and power with minimal effort in all riding conditions Higher brake lever axis and curved brake lever,improves grip and confidence on choppy surfaces and descents Raised hood head prevents hand misalignment and slippage Recessed finger notch prevents upward slipping Anti-slip texture and brake lever coating gives higher braking efficiency and reduces fatigue on long rides 11-Speed E-tube Di2 compatible Levers are supplied without electrical cables, as these need to be ordered separately to suit Kit contains bled right hand ST-RX815 STI, BR-RX820 flat mount front brake calliper with pads, hose and mineral oil (without rotor or adapter) Specification Specification Detail Groupset GRX Speed 11-Speed Mount standard Flat Mount Colour Black Weight 0.68 kg Fitment Right hand Sets up cleanly alongside the rest of the groupset for a tidy, integrated cockpit.
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Shimano ST-RX815 GRX DI2 11-Speed STI-Right Fron

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About: Shimano

Shimano is a leading brand in the cycling industry, renowned for its high-quality components and innovative technology. The company offers a range of cycling products, including drivetrains, brakes, wheels, pedals, and shoes. Shimano's drivetrain components, such as its derailleurs and shifters, are widely regarded as some of the best on the market, providing smooth and reliable shifting for cyclists of all levels. The company's disc brakes are also highly regarded, providing excellent stopping power and modulation. With a commitment to innovation and a focus on the needs of cyclists, Shimano continues to be a go-to choice for cyclists looking for top-of-the-line components for their bikes.

About: Fawkes Cycles

Fawkes Cycles is a UK-based cycling retailer built on a foundation of elite racing experience and a genuine love for the sport. Founded by former professional cyclists Nigel and Mandy—whose achievements include representing Great Britain and winning a world championship—Fawkes Cycles combines expert insight with a strong commitment to customer service. The store offers a wide selection of bikes, parts, and accessories from trusted brands, alongside exclusive deals, discount codes, and convenient services like free UK delivery and click & collect. Whether you're a beginner or a seasoned rider, Fawkes Cycles is a name you can trust for quality, value, and real cycling know-how.

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