Shimano GRX RX820 Unstoppable Groupset, 1x12, with Crankset & Disc Brakes

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  • Regular price $1,899.95 CAD

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The new Shimano GRX RX820 Unstoppable Groupset, 1x12, with Crankset & Disc Brakes groupset is an ideal option for all competitive gravel cyclists. It marries Shimano's renowned mechanical shifting precision with carefully calibrated gear ratios tailored for gravel riding. GRX RX820 is a top-tier choice for riders seeking high-performance combined with light weight. Whether you're competing in gravel races or embarking on extensive bike packing adventures, the new GRX R820 offers the reliability and efficiency you need.

The new GRX RX820 Unstoppable 1x12 Groupset is for those who relish all-day or multi-day adventures featuring plenty of climbs. With a wide 10-51T cassette range, paired with a 40T or 42T chainring, you'll have an extensive gear range at your disposal. This setup ensures you'll never find yourself short of gears, even when tackling the steepest village roads or conquering high mountain terrain. The Groupset also incorporates an integrated SHADOW-PLUS clutch derailleur for optimal chain retention and tension. Additionally, the derailleur includes a clutch ON/OFF switch, simplifying wheel removal during service or in case of a flat tire.

The new ST-RX820 brake/shift levers have been specially developed for use with flared handlebars, which have become synonmous with gravel riding. They feature a non-slip surface texture and improved ergonomics that reduce pressure on your palms. These enhancements translate to increased comfort and control, allowing you to confidently navigate challenging terrain or concentrate on the gravel road ahead.

Components included in groupset:

Cassette: XT CS-M8100-12 (10-51T)

Rear Derailleur:
GRX RD-RX822-SGS 12-speed long cage (51T max low sprocket, 51T min low sprocket)

GRX ST-RX820-R Hydraulic Disc Brake DUAL CONTROL Lever 12-speed (right)
GRX ST-RX820-L Hydraulic Disc Brake Lever (Left)

Chain: CN-M8100 12-speed, 126 links with Quick-Link

Crankset: GRX FC-RX820-1 (170mm) (172.5mm) (175mm) (40T) (42T)

Bottom Bracket: 
SM-BBR60 (68/70mm) HOLLOWTECH II, Threaded
SM-BB72-41 (86.5mm) HOLLOWTECH II, Press-Fit

Brakes (calipers):
 GRX BR-RX820-F (front) & GRX BR-RX820-R (rear), L05A-RF Resin pads, 1000mm front hose, 1700mm rear hose & all mounting hardware.
J-Kit - SM-BH90-JK-SS brake lines are filled with mineral oil and pre-assembled on BR-RX820 calipers!