The all-new GRX RX827 rear derailleur paired with a 10-51T cassette gives riders and racers the speed, range, and robustness to pursue any gravel challenge. With built-in automatic impact recovery, an impact-deflecting shape, and solid pulleys, this derailleur stands up to hard impacts and still retains its lightning-quick shifting performance.
Fully wireless shifting built for rough gravel terrain
Robust Design: A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity
RD Protection Function: The new Automatic Impact Recovery function instantly returns the derailleur to its original position after impact
SHIMANO SHADOW ES: A slimmer, stronger evolution of SHIMANO's pioneering chain-stabilizing SHADOW RD+ concept
Protected Battery: Tucked safely inside an enclosed space, the battery won't budge even in rough terrain, while remaining easily removable for charging
Sealed bearing pulleys
Cage Length: Long (SGS)
Paired with a 10-51T cassette gives riders and racers the speed, range, and robustness to pursue any gravel challenge
Mount: Direct Attach (Conventional)
Speeds: 12
Total Capacity: 41T
Minimum High Sprocket: 10T
Maximum Low Sprocket: 51T
Please Note: We do not allow coupons on this product.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to information go to www.P65Warnings.ca.gov.
Long Cage (SGS)
Shimano RD-RX827 GRX Wireless Di2 Rear Derailleur Long Cage (SGS)
The number available to ship today is for orders placed by 8:30 AM Pacific time.
For orders that can ship complete from one warehouse, "Today" is extended to 1:30 PM for Oregon and Nevada, and 11:30 AM for Utah.
If you click the link to "Show all four warehouse quantities", you can see exactly how many items can ship from each warehouse.
The number available to ship in 1 or more days is for orders placed today by 1:30 PM Pacific time.
Example:If our site says "0 Today" and "5 Monday", if you order today by 1:30 PM Pacific time we can ship up to 5 of these items by Monday from one of our warehouses.
Available For Pickup Questions
Quantities shown are for orders placed now.
The number available for pickup today is the current stock on the shelf in each retail location.
The number available for pickup in 1 or more days is for orders placed today by 1:30 PM Pacific time.
Example:If our site says "Portland, OR 0 Today" and "5 Monday" if you order today by 1:30 PM Pacific time you can pick up to 5 of these items by Monday at our Portland retail store.
Shopping Filters
Choose "Show All Products" to view all available products. Choose "In Stock Products" to view all products in stock in one of our warehouses at this moment. Choose one of our retail stores to view only the products that are in stock at a particular store and available for pickup at this exact moment.
We offer flat rate ground shipping, with free shipping on orders over $150 on most items (some oversize items are excluded from free shipping).
Ground Shipping for $9.99
If your "Product Total" is under $150, Ground Shipping will cost $9.99.
Free Ground Shipping on orders over $150
If your "Product Total" is over $150, Ground Shipping will be free. Sales tax amount does not count towards free shipping. Some oversize items are excluded, and will be noted on the product pages and in the cart.
Additional Details
Choose Ground Shipping at checkout.
Ground Shipping is available in the lower 48 states.
Generally, your order will ship UPS if it weighs over a pound, and Postal if it weighs less than a pound.
Shimano RD-M8150-11 XT STEPS Di2 Rear Derailleur - 11 Speed
Shimano RD-R7150 105 Di2 Rear Derailleur - 2 x 12 Speed
Shimano RD-M8150-12 XT STEPS Di2 Rear Derailleur - 12 Speed
Shimano RD-RX815 GRX Di2 Rear Derailleurs - 2 x 11 Speed
Shimano RD-RX817 GRX Di2 Rear Derailleurs - 1 x 11 Speed
Shimano RD-U6050-10 STEPS Di2 Rear Derailleur
Shimano RD-R8050 Ultegra Di2 Rear Derailleur - 11 Speed
Shimano RD-U6070-11 STEPS Di2 Rear Derailleur
Shimano RD-RX825 GRX Di2 Rear Derailleurs - 2 x 12 Speed
Shimano RD-U8050-10 Di2 CUES Rear Derailleur - 10 Speed
Shimano RD-RX827 GRX Wireless Di2 Rear Derailleur
Shimano RD-U8050-11 Di2 CUES Rear Derailleur - 11 Speed
Shimano RD-M8050 XT Di2 Rear Derailleur - 11 Speed
Shimano RD-R8150 Ultegra Di2 Rear Derailleur - 12 Speed
Shimano RD-M9050 XTR Di2 Rear Derailleur - 11 Speed
Shimano RD-R9150 Dura-Ace Di2 Rear Derailleur - 11 Speed
Shimano RD-M8250 XT Di2 Rear Derailleurs - 12 Speed Wireless
Shimano RD-R9250 Dura-Ace Di2 Rear Derailleur - 12 Speed
Shimano RD-M8260-11 XTR Di2 E-Bike Rear Derailleur - LINKGLIDE, 11 Speed
Shimano RD-M8260-12 XTR Di2 E-Bike Rear Derailleur - 12 Speed
Shimano RD-M9250 XTR Di2 Rear Derailleurs - 12 Speed Wireless
Shimano RD-M9260-11 XTR Di2 E-Bike Rear Derailleur - LINKGLIDE, 11 Speed
Shimano RD-M9260-12 XTR Di2 E-Bike Rear Derailleur - 12 Speed
