Shimano GRX RX820 1 x 12 Speed Wide Ratio Groupset

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.

Full List of spec- 

Chain: XT/Ultegra M8100 12 Speed Chain

Outer plate design has been developed to reduce the chance of chain suck

Sil-Tec surface treatment technology (PTFE plating) on inner and outer links and rollers that is smooth running and increases durability

For use with 12-speed HG+ drivetrains

Comes complete with Quick Link which enables fast tool free chain assembly

Cassette: XT CS-M8100 12 Speed Cassette (RRP £159.99)

New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+

BEAM SPIDER construction

Lighter and stiffer, reducing cassette inertia for faster acceleration and enhanced chain security

MICRO SPLINE technology

Average weight: 461g (10-45T), 470g (10-51T)

Choose 10-45T OR 10-51T

Chainset: GRX FC-RX820 12-Speed Single (RRP £229.99)

The RX820 series offers premium performance at an incredible value, with thoughtful ergonomic designs and gravel-centric gearing for all manners of unpaved adventure. Choose - 170 , 172.5 AND 175mm with a 40T or 42T chainring 

Rear Mech: GRX RD-RX822 12-Speed Single Rear Derailleur (RRP £119.99)

Low profile Shadow Plus design 12-speed rear derailleur for fast and precise shifting performance

Shadow Plus uses a chain stabilizing switch that, when on, will reduce chain bounce in rough terrain, maintaining more stable drive and shifting

High-tolerance cold forged aluminium link plates and body construction is extremely light and durable

Choose - SGS or GS

R/H Lever: GRX ST-RX820 12-Speed Right Hand STI Lever & BR-RX820 Disc Brake (RRP £349.99)

Greater comfort and control on mixed terrain

Gravel-specific brake lever and bracket ergonomics

Anti-slip coating on brake lever surface

Optimized for use with flared handlebars

L/H Lever: Shimano GRX BL-RX820 Left Hand Lever & BR-RX820 Disc Brake (RRP £329.99)

Brake hose (kit)  - SM-BH90-JK-SSR

Hose joint  - Straight

Clamp band  - Diameter (mm)   - 23.8-24.2

Pads L05A-RF Resin (w/ fin)

All products are sourced from official importers and covered by manufacturers warranty. If you do need to send items back to us please make sure that you retain proof of postage in the event that it is needed. Please feel to contact us on 01304 840673 or email us at info@sprockets.uk.com

Your product is covered by a 12 month Warranty or more if you opted for the extended warranty. Make sure you register your product.