Shimano GRX RD-RX812 Rear Derailleur

backcountry  |  SKU: DWGC02N
$7397 49% Off

Original price

$14500

Shipping calculated at checkout.
Condition
Good  NEW
Never used. Shows no signs of wear. New items may have the original tags or come in their original packaging.

EXCELLENT
This gear should be like new with very minimal use and wear.

GOOD
This gear is still in good shape. There’s some wear and tear, but has plenty of life left in it. Signs of wear may include pilling, snags, lint, animal hair, dried dirt, and minor but noticeable staining, etc.

FAIR
This gear is still usable and is in OK shape, but shows noticeable signs of wear and tear. Fair condition products likely have cosmetic blemishes throughout such as pilling, lint, animal hair, and dried dirt. Physical damages such as holes, tears, loose stitching, and staining are often found on Fair items. Fair items are valued for function over form.

Free Shipping on Orders $100+*

Free Shipping on Orders $100+

  • Offer valid on products purchased from the sellers Geartrade or Backcountry
  • Not valid on orders shipped to Alaska and Hawaii
  • Not valid on products in the following categories: complete bikes, bike frames, bike wheels, travel cases, kayaks, inflatables, pontoons, SUP's, surfboards,wakeboards, crash pads, windsurf boards, cargo boxes, car racks, skis, snowboards, tents, backpacks and coolers

FAQ's

Are the product photos of the actual items?

  • Yes! Geartrade does not use stock photos on their used gear. What you see, is what you get.
  • Some items in new condition may have stock photos.

Why should I buy used gear?

  • Good gear is built to last, you can save a lot of money and it's great for the planet.

I want to sell gear - what do you accept?

What is your return policy?

  • We offer a generous no-questions-asked 14 day return policy. You have up to 14 days to return your gear after it has been delivered. The item needs to be in the same condition we sent it to you (keep those tags on). Our full return policy can be found here: Return Policy

How fast do you ship?

  • Most orders placed before 1pm MST are shipped out that day. We ship Monday-Friday.
Why Geartrade?
  • Items are Hand-inspected by Gear Experts
  • Steep Discounts on Premium Outdoor Brands
  • Over 3 million pounds of gear diverted from landfills since 1999

Product Condition: The GRX RD-RX812 Rear Derailleur is in Good condition. Was previously owned for approximately 1 month. Derailleur shows little to no signs of installation or use. Original packaging is damaged. Sold as-is. All warranties void.

Size: Unisex Rear

Color: Black

Retail Cost: $145.00

What Our Gearhead Experts Are Saying:

"I switched to the GRX RX812 for my 1x gravel rig and haven’t looked back. The clutch keeps my chain tight over chunky descents, and shifting stays smooth even when my drivetrain’s covered in dust and mud. It’s basically MTB toughness adapted perfectly for drop bars."

From washboard descents to rocky doubletrack climbs, we rely on the Shimano GRX RX812 Rear Derailleur to keep our shifting crisp and our chain quiet. Purpose-built for gravel and adventure riding, this derailleur brings proven Shimano MTB tech into the drop-bar world, so we can charge harder without worrying about dropped chains or ghost shifts.

The RX812 uses a clutch-based Shadow RD+ design to maintain consistent chain tension, especially when the terrain gets rough. It's optimized for a 1x11 drivetrain with an 11–42t cassette range, giving us simplicity up front and plenty of gearing in the back. Whether we’re racing a gravel grinder or tackling a weeklong bikepacking route, this derailleur delivers smooth, reliable performance with zero drama.


GRX RX812 derailleur delivers smooth, clutch-stabilized shifting for gravel adventures (DWGC02N)

TECH SPECS

  • Material: alloy
  • Capacity: 31t
  • Cassette Range: [maximum] 11 - 42t, [minimum] 11 - 40t
  • Gearing: 1 x 11
  • Compatibility: Shimano 11speed
  • Claimed Weight: 9.4oz (267g)
  • Activity: gravel

Not everything needs to be new. Earth matters too.

Wear it Out ™

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