Shimano GRX RX800 1 x 11 Groupset

Shimano GRX Kit Overview

Shimano GRX, designed with gravel-specific ergonomics, optimized gearing, and rugged reliability, offers a quiet, stable drivetrain suited for unpaved adventures. This premium series provides outstanding performance and value with ergonomic designs and gravel-centric gearing.

These are fully boxed UK products.

Included Parts:

Cassette: Shimano Deore XT CS-M8000 11-Speed Cassette

• Sprockets are cut away & drilled to further reduce weight without reducing rigidity.
• SIL-TEC surface treatment technology (PTFE plating) on inner and outer links and rollers that is smooth running and increases durability
• Light & durable 40/42T sprockets.
• Chrome-plated finish offers hard wearing resistance to corrosion.
• Alloy cassette lockring.

Chainset: Shimano GRX FC-RX810 11 Speed Single Chainset

• Anodized aluminium crank arms
• Optimum gearing for mixed terrains and riding styles
• Lightweight aluminium chainring
• 4 arm, 110 mm bolt circle diameter
• Weight: 644 g (40T), 656 g (42T) for 170 mm
• Bottom bracket does not come included

Chain: XT M8000 / Ultegra 6800 CN-HG701 11-Speed Chain 116L

• The inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling, increased rigidity and near silent running
• 5.62 mm chain width, optimised for 11-speed Super Narrow HG-EV drivetrains
• Comes complete with Quick Link which enables fast tool free chain assembly
• 116 links (can be shortened with a standard chain breaker tool)
• Average weight 257 grams

Rear Mech: GRX RD-RX812 11 Speed Shadow+ Single Rear Mech

• Top sprocket: Max. 11T/Min. 11T
• Low sprocket: Max. 42T/Min. 40T
• Total capacity: 31T
• With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain.
• For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner.

L/H Brake: GRX BL-RX810/BRRX810 Disc Brake - Left Hand Lever

• GRX hydraulic disc brake levers give you control, modulation and power with minimal effort in all riding conditions
• Raised hood head prevents hand misalignment and slippage
• Anti-slip texture and brake lever coating gives higher braking efficiency and reduces fatigue on long rides

R/H Shifter/Brake: GRX ST-RX810/BR-RX810 11 Speed STI Lever & Disc Brake

• GRX hydraulic disc brake STI's give you control, modulation and power with minimal effort in all riding conditions
• Raised hood head prevents hand misalignment and slippage
• Anti-slip texture and brake lever coating gives higher braking efficiency and reduces -fatigue on long rides