NEW Shimano GRX 820 Groupset – 2 x 12 with 11-36 – Undroppable


This Undroppable setup comes with a 2×12 speed setup, 11-36t cassette on 48/31 crankset. Please drop us an email or give us a call if you’re interested in getting your new bike kitted out with GRX 12 Speed…


We Say…

Brand new to the UK, Shimano GRX820 12 Speed Groupsets. Everything that we love about 810 but with more gear range and smaller intervals. Get yours at The Woods Cyclery today!

The Undroppable sticks with a traditional 2x setup, giving you neater shifting within the cassette than it’s 11 speed predecessor…

Take a look at what the crew at think

Shimano GRX 12-speed Review: 800-series 1x

They Say…

The new Shimano RX820 series offers premium performance at an incredible value, with thoughtful ergonomic designs and gravel-centric gearing for all manners of unpaved adventures. Its three 12-speed Shimano GRX drivetrains deliver precise and reliable mechanical shifting with different gearing ranges to cover the full spectrum of riders and rides.

Keep spinning comfortably throughout multi-day adventures, challenging climbs, and unpredictable conditions.

Shimano GRX brake levers have a robust anti-slip coating to ensure enhanced grip performance and control even when facing heavy downpours, splashes and muddy conditions.

With a rounded profile, the new Shimano GRX RX820 hood shape distributes pressure over more of your hand, ensuring long-range comfort.

The textured surface of the Shimano GRX hood ensures you’re always in control, even on bumpy descents.

The anti-slip coating on Shimano GRX brake levers means that even in wet or muddy conditions that you’ll always have Shimano’s legendary stopping power on demand.

The new optimised brakes have increased modulation 10% more disk brake clearance for less disk rubbing.


  • Rear derailleur: RX820 Shadow+
  • Cassette: HG710 12 speed 11-36t
  • Front chain line combination: FCRX820 Double 48/31
  • Lever – ST-RX8202
  • Crankset – FC-RX8202
  • Brake calliper – BR-RX820
  • Chain – CN-M8100

Thinking about pairing this with your dream build? Why not browse our amazing selection of frames below and start your building your dream bike. 

Browse Frames…

This Groupset does NOT include Disc Rotors or Bottom Bracket

Additional information

Crank arm length

170, 48-31T, 172.5, 48-31T, 175, 48-31T



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The Woods Cyclery, at 56 High St, Lyndhurst, SO43 7BG 02380 282028 [email protected]

Forest Leisure Cycling Burley Limited (company number 07192169)