GRX RD-RX812 Rear Derailleur
Shimano

GRX RD-RX812 Rear Derailleur

IRDRX812

$119.99
/
Size

California Region

  • San Rafael 2-4 days 10-14 days
  • Sausalito 2-4 days 10-14 days
  • Berkeley 2-4 days 10-14 days
  • Palo Alto Available
  • San Francisco 2-4 days 10-14 days
  • Sacramento Available
  • Los Gatos 2-4 days 10-14 days
  • Petaluma 2-4 days 10-14 days
  • Walnut Creek 2-4 days 10-14 days
  • San Jose 2-4 days 10-14 days
  • Pleasanton Available
  • Folsom Available
  • Roseville Available
  • Stanford Research Park Available
  • Distribution Center 2-4 days 10-14 days
  • Distribution Center 2-4 days 10-14 days

Colorado Region

  • Denver East Available
  • Denver Downtown Available
  • Highlands Ranch Available
  • Parker Available
  • Distribution Center 2-4 days 10-14 days

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
  • For 1x drivetrains
  • Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10x1 Standard
  • Drivetrain Speeds: 11
  • Cage Length: Long
  • Chain Wrap Capacity (teeth): 31 teeth
  • Largest Cog: 42
  • Color: Black
  • Weight: 267 g
  • Rear Der/Shifter Compatibility: Shimano Road

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