Shimano

Shimano Ultegra DI2 RD-R8050 Rear Derailleur

$404.99

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Shimano Ultegra Di2 RD-R8050 Rear Derailleur

Shimano's refinements to the latest Ultegra Di2 group are truly remarkable, and while we always fancy a full Dura-Ace build, we'd be hard pressed to decipher a difference in performance. That makes sense since Ultegra gets Dura Ace trickle down technology, and for rear derailleurs, the RD-R8050 borrows heavily from the firm's top-end Dura-Ace RD-R9150—including the low profile Shadow design. This profile places it closer inbound to the frame and tucks the derailleur under the cassette. This protects the derailleur in the event of a crash and in general from getting banged around, so it remains better aligned making shifts smooth, quick, and accurate. The RD-8050's new geometry allows for shorter throws that result in faster and more precise shifts even over a wider range 11-34 cassette.


- Sleek integrated appearance
- New low-profile design
- Shimano Shadow RD
- Race endurance
- Optimized slant angle
- Maintain race concentration with more intuitive shift control
- System communication with front derailleur
- Shimano Synchronized Shift
- Wide compatibility
- Short cage covers: 11-25T to 11-30T
- Medium cage covers: 11-28T to 11-34T
- Average Weight: 242 grams (SS type), 249 grams (GS type)

    Please visit our sizing guide for more information: MAAP Sizing Guide
    Order Fulfilment, Delivery, and Local Pick-up:

    In-stock orders will be ready for pickup within 24-48hrs. Please wait for confirmation email prior to pickup.

    In-stock orders will be shipped within 24-48 hours of placement.

    For local pick-up, we will contact you when your item is ready. Please bring a copy of your order confirmation and identification when you pick up your order.