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Shimano GRX 820 2×12 Speed Mechanical Groupset

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Fuel your all-terrain drop bar bike with the Shimano GRX 820 2×12 Speed Mechanical Groupset. Achieving the ideal gearing ratio for swiftness on technical offroad climbs, plus equipped with disc brakes for reliable speed control, this groupset stands out with gravel-specific ergonomics, optimised gearing, indomitable stability, and quiet operation. Available now at

This Shimano GRX package includes the

  • ST-RX820 2×12-Speed STI gear/brake levers
  • Fd-RX820 2×12-Speed front derailleur
  • Braze-On, Rd-RX820 2×12-speed rear derailleur
  • Shadow+, FC-RX820 48/31T Chainset
  • R710 11-36T or 11-34T Cassette
  • CN-M8100 Chain

Handle rough terrain with better grip and certainty via its higher brake lever axis and curved brake lever. An anti-slip texture and

    Return Policy

    Please email for returns, defects or order issues. Do not contact our chat support.

    Final Sale

    Items marked Final Sale are not returnable for any reason.  If there is a problem with your order please send an email to

    Our Policy

    To provide our customers with the flexibility and confidence to shop online, our return policy is 30 days. If opened, items must be defective or unused, and returned with original undamaged packaging to be eligible for a refund. All returns must be pre-approved via our return centre before being shipped back to our warehouse or returned in person to our 2205 West 1st location in Vancouver. Refunds can take up to 7 days to process and are reflected on your method of payment. Refunds will only be issued once the product is received, inspected, and approved by our receiving team. The amount will be refunded to the original form of payment and, in some circumstances, we may charge a restocking fee or refund to store credit. The date on which you placed your order is used to determine the return time frame.

    Returns, not exchanges.

    We do not offer exchanges. If you are looking for another size or colour, place a new order through our website, and then visit our return centre.

    Shipping and Fulfilment

    Order Fulfilment, Delivery, and Local Pick-up:

    In-stock orders will be ready for pickup within 24-48hrs. Please wait for confirmation email prior to pickup.

    In-stock orders will be shipped within 24-48 hours of placement.

    For local pick-up, we will contact you when your item is ready. Please bring a copy of your order confirmation and identification when you pick up your order.

    Shimano GRX 820 2×12 Speed Mechanical Groupset - Shimano