The Shimano CUES Di2 RD-U8050-GS brings electronic precision to the CUES drivetrain platform, designed for riders who want reliable, low-maintenance performance on trekking, urban, and e-bike applications. Pairing Di2 electronic shifting with Shimano's LINKGLIDE cassette technology, this medium-cage derailleur offers 1x10-speed capability with a maximum 43T sprocket for confident climbing and smooth daily riding.

Highlights

• Di2 electronic shifting: Instant, precise gear changes at the press of a button — consistent performance in all conditions.
• LINKGLIDE compatibility: Engineered for LINKGLIDE 11-43T 10-speed cassettes, a drivetrain designed for extended component life and smooth engagement.
• Wireless capable: Pairs with the SW-EN605 wireless shifter (sold separately) for cable-free handlebar setups via Bluetooth and ANT+.
• SHADOW RD design: Low-profile cage sits close to the frame to reduce snag risk and protect the derailleur from trail debris and impacts.
• E-TUBE PROJECT integration: Adjust shift timing, button mapping, and personalise your shifting via the E-TUBE PROJECT Cyclist smartphone app.
• E-bike ready: Compatible with e-bike systems including Bosch BSE3 (via PW-PS300 power supply wire, sold separately).
• LED indicator and function button: Built-in LED provides battery and connection status at a glance; function button enables on-bike adjustments.

Di2 Technology

CUES Di2 delivers the same electronic shifting logic found in Shimano's flagship groupsets at a more accessible price point. The RD-U8050-GS connects via a single SD300 port and handles all derailleur adjustments electronically — eliminating cable stretch and barrel adjuster fiddling. Fine-tune limit screws and offset digitally through the E-TUBE PROJECT app on your smartphone.

LINKGLIDE Drivetrain

LINKGLIDE is Shimano's durability-first drivetrain standard, engineered for longer chain, cassette, and derailleur life compared to HyperGlide — making it ideal for commuters, tourers, and e-bike riders who clock up high kilometres. The RD-U8050-GS is purpose-built for LINKGLIDE 11-43T 10-speed cassettes, though it also works with HG 11-speed chains within the CUES Di2 system.

Compatibility & Fit

The RD-U8050-GS is a 1x10-speed Di2 rear derailleur. It mounts via standard direct attachment (conventional derailleur hanger). It is compatible with LINKGLIDE 11-43T 10-speed cassettes and supports wireless shifting when paired with the SW-EN605 wireless shifter. Total chain wrap capacity is 32T. Pulley wheels are 11T. The derailleur is compatible with the Shimano FH-U6060 hub and select e-bike systems including Bosch BSE3 (with PW-PS300, sold separately). Not compatible with non-CUES Di2 systems.