Take the guesswork out of e-bike shifting with the Shimano CUES RD-U8050-GS — a wireless Di2 electronic rear derailleur built for 1x10-speed LINKGLIDE drivetrains. Designed for commuters, urban riders, and e-bike adventurers who want reliable, precise gear changes without the maintenance demands of mechanical cables.

Highlights

• Wireless Di2 electronic shifting: motor-driven precision on every shift, immune to cable stretch or friction buildup over time.
• LINKGLIDE technology: engineered for long chain and sprocket life, ideal for high-use commuting and everyday riding.
• GS medium cage: handles LINKGLIDE 11-43T 10-speed cassettes with a 32T total chain wrap capacity.
• Bluetooth LE and ANT wireless: connects to the SW-EN605 shifter wirelessly for a cleaner cockpit setup.
• Built-in LED indicator and function button: easily check system status and perform setup steps directly at the derailleur.
• E-TUBE PROJECT Cyclist app: fine-tune shift timing, customise button assignments, and run diagnostics via smartphone.
• SD300 port: wired Di2 connectivity option for system integration and charging.
• SHIMANO SHADOW RD: low-profile design reduces snag risk and keeps the derailleur tucked close to the bike.

Electronic shifting for everyday riding

Di2 removes cable friction and stretch from the equation entirely. A small internal motor drives each shift, delivering the same crisp, consistent action whether you're in week one or year three of ownership. Paired with LINKGLIDE's durability-focused chain and sprocket geometry, this system is built to hold up to hard use with minimal attention.

E-bike integration

The RD-U8050-GS is specifically designed for e-bike use. It is compatible with select BOSCH BSE3 drive units via the electric power supply wire EW-PS300, and is also compatible with the Shimano FH-U6060 hub. This dedicated e-bike focus ensures the derailleur is optimised for the torque and usage patterns of assisted riding.

Compatibility & Fit

Designed for 1x10-speed LINKGLIDE drivetrains. Compatible with LINKGLIDE 11-43T 10-speed cassettes (max low sprocket 43T, min top sprocket 11T, total capacity 32T). Operates wirelessly with the SW-EN605 Di2 switch, or via SD300 wired connection. Compatible with select BOSCH BSE3 e-bike systems using EW-PS300, and with the Shimano FH-U6060 hub. Not compatible with standard HG drivetrains. Confirm full system compatibility — shifter, cassette, chain, battery, and drive unit — before installation.