GRX RD-RX810 Rear Derailleur

GRX RD-RX810 Rear Derailleur

IRDRX810

Regular price$117.99
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Earn Up To $1000 in Reward Cards

Get Carded For The Holidays

Now through December 24th, when you spend $250 or more in-store or online, you will receive a free rewards card to redeem on future purchases. Earn rewards while you shop and make this holiday season even sweeter! You can keep the card for yourself or give it to someone else—we won't judge.


BUY GREAT GEAR. GET REWARDED
SPEND RECIEVE A:
$250 - $499 $25 Promo Card
$500 - $999 $75 Promo Card
$1000 - $2499 $150 Promo Card
$2500 - $4999 $400 Promo Card
$5000 - $7999 $600 Promo Card
$8000+ $1000 Promo Card

Promotion is valid on all qualifying purchases made between 11/16/24 and 12/24/24, and the value of the Rewards Card is dependent on the qualifying purchase threshold (excluding any applicable costs of packaging, shipping & handling, or taxes). Offer not valid on gift cards. No discount is applied at the time of sale. Rewards Cards WILL BE EMAILED ON 12/26/24 for qualifying online purchases and are valid only at mikesbikes.com from 12/26/24 - 2/28/25. For in-store purchases and pick-ups, physical cards will be issued at the time of sale. Get Carded offer is not retroactive, and lost or stolen Rewards Cards will not be replaced. Physical and digital Rewards Cards expire on 2/28/25.


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  • Inventory on the way

Free shipping on all orders over $49. $9 shipping for orders under $49.

Cannondale, Santa Cruz, Cervelo, Gazelle, BMC, and *other bikes ship for FREE, but Gold Label Assembly will be added at checkout for only $79 (reg. $100) to cover the professional bike build and re-packaging by our certified technicians. It’s bike shop quality, direct to your door!

Some bikes not eligible for shipping due to manufacturer restrictions.

Shop with confidence! It's important to us that you are happy with your Mike’s Bikes purchase so we offer offer a 30-day return/exchange window for your unused gear and 14 days on all bikes. Our exchange and return process is fast and easy. If you choose to exchange for a different size or color, we will ship your product for free.

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The Shimano GRX 11-speed rear derailleur provides silent and uninterrupted rear shifting on rough terrain. An adjustable Shimano Shadow RD+ clutch prevents chain slapping and drops.

  • Compatible with Shimano road Dual Control Levers
  • Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting
  • Toggle clutch on/off to match the terrain
  • For 1x and 2x drivetrains
  • Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard
  • Drivetrain Speeds: 11
  • Cage Length: Long
  • Chain Wrap Capacity (teeth): 40 teeth
  • Largest Cog: 34
  • Color: Black
  • Weight: 255 g
  • Rear Der/Shifter Compatibility: Shimano Road