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NEW Shimano GRX RX820 2x12 Mechanical Groupset - Gravel, All-Road

NEW Shimano GRX RX820 2x12 Mechanical Groupset - Gravel, All-Road

$ 1,159.97 USD
$ 1,289.00 USD $ 1,159.97 USD
Sale Sold out
Shipping calculated at checkout.
Cassette + Chain
Special Order - In Warehouse or Pre-Order - contact us for ETA
ATC SKU: 210000072342

PRODUCT DETAILS

MORE CONFIDENCE ON ANY ROAD

We've updated the GRX 12-speed RX820 and RX825 brake/shifter levers to give you ultimate control on any terrain with a new shape optimized for flared handlebars.

SMOOTH & SILENT

Introduced in our MTB range, SHADOW RD+ and SHADOW ES give GRX rear derailleurs a low-profile design that reduces chain slap and improves chain retention.

WIDER TIRE CLEARANCE

GRX cranks and front derailleurs use a wider chainline to improve tire and mud clearance, a key feature when the going gets tough.

OPTIMIZED GEARING OPTIONS

Whatever your gravel style is, it helps to have options. GRX includes single and double chainring cranks, mechanical and electronic shifting options and a range of cassettes to dial in your ride.

COMPONENTS:

  • ST-RX820 Shift/Brake Lever with BR-RX820 Hydraulic Disc Brake Caliper - Left/Front, 2x, Flat Mount Caliper, Black
  • ST-RX820 Shift/Brake Lever with BR-RX820 Hyd Disc Brake Caliper - Right/Rear, 12-Speed, Flat Mount Caliper, For 25mm Mount
  • FD-RX820-F Front Derailleur - 12-Speed, Double, Braze-On, Down Swing, Down Pull, 48t Max
  • RD-RX820 Rear Derailleur - 12-Speed, Direct Mount, One Spec, Shadow Plus Design, 36t Max Low
  • Your choice of cassette/chain:
    • 105 CS-HG710-12 Cassette - 12-Speed, 11-36t, HG L2, Silver + SLX CN-M7100 Chain - 12-Speed, 126 Links, Silver
    • Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver + XT CN-M8100 Chain - 12-Speed, 138 Links, Silver
    • Dura-Ace CS-R9200 Cassette - 12-Speed, 11-34t, Gray + XTR CN-M9100 Chain - 12-Speed, 126 Links, Silver

Crankset, bottom bracket, and brake rotors are not included, but are available as add-ons above.

California Prop 65 Warning:
This product may contain chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. (California law requires this warning be given to customers in the state of California.)
California CBE Fees:
Some products we sell may be subject to California’s Covered Battery-Embedded (CBE) Waste Recycling Fee (effective January 1, 2026) when a product contains a non-removable rechargeable battery. If applicable, the fee (1.5% fee with a $15 max per item) will either be added to your cart as a separate line item or be invoiced after your order is placed and before it can be fulfilled.
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