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Shimano GRX Di2 RD-RX817 11-speed rear derailleur
The 11-speed Shimano GRX Di2 RD-RX817 is designed for gravel and mixed terrain, combining precise electronic shifting with chain stabilization to improve safety and quiet operation.
- Speeds: 11-speed
- Technology: SHIMANO SHADOW RD+
- Mount type: Direct Mount (Shadow)
- Compatibility: Road DUAL CONTROL levers
- Minimum sprocket: 11T
- Maximum sprocket: 42T
- Total capacity: 31T
- Cassette compatibility: MTB up to 42T
- Chain tensioner: ON/OFF switch
Technical features
Di2 electronic shifting
Di2 technology delivers fast, precise, and synchronized electronic shifting for gravel and road use.
SHADOW RD+ chain stability
The SHIMANO SHADOW RD+ system features an adjustable stabilizer that reduces chain movement on rough terrain.
Terrain adaptation
The tensioner ON/OFF switch lets you adjust derailleur behavior depending on the type of surface.
Compatibility and range
Compatible with 11-speed drivetrains and MTB cassettes with a maximum 42-tooth sprocket.
- Color
- Black
IRDRX817
Product Availability
Most of our items are in stock and marked on the product page as "Available. Immediate shipping".
For items with size variations, this information will appear once the appropriate option is selected. If we do not have immediate stock, the estimated delivery time will be shown. We keep this information up to date and work hard to deliver your order as soon as possible. If the item is unavailable, you can subscribe to an alert to be notified once it’s back in stock.
Payment Methods
We accept card payments, PayPal, Klarna, Amazon Pay, among others. Once received and confirmed, we will process your order and begin preparation.
Shipping and Costs
We offer free shipping on most of our orders. For purchases over €100, shipping is free to countries such as Belgium, France, Germany, Luxembourg, the Netherlands, Portugal, and Spain. We do not ship to the Azores, Madeira, the Canary Islands, Reunion Island, or Guernsey..
Returns Policy
We want you to be completely satisfied with your purchase, so you have 30 days to return your order, as long as return conditions are met. You can find more information about exchanges and returns here. For hygiene and safety reasons, returns of unsealed and/or activated electronic products, food items, swimsuits, and wetsuits are not accepted. See details here.
Size Exchanges
For size-specific products, please refer to the size guide on the product page to choose the best fit. If you need a different size upon receipt of your order, you have up to 30 days to request a change. Follow the steps detailed here
Payment method
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