Shimano CUES RD-U6070 11-Speed Rear Derailleur – ~454 g (Shadow, Direct Attach, Di2)

The Shimano CUES RD-U6070 rear derailleur brings smooth, intuitive electronic shifting to your 1×11-speed setup, engineered for modern electric bikes and compatible LINKGLIDE cassettes. Featuring Shimano’s Shadow design and medium-cage (GS) configuration, it maintains a low profile for silent performance and improved chain retention while handling a wide 11–50 T range. 

At approximately 454 g, this derailleur balances lightweight responsiveness with robust construction, making it a great upgrade for riders seeking precision shifting and reliability on a variety of terrain. The direct attach mount simplifies installation and alignment, while Shimano’s electronic Di2 system ensures crisp, consistent shifts whether you’re climbing, descending, or cruising. 

Key Specs & Features:

• Weight: ~454 g (medium cage) 

• Speed: 11-speed Di2 electronic shifting 

• Compatibility: LINKGLIDE 11-50 T cassettes 

• Design: Shimano Shadow low-profile derailleur 

• Mount: Direct attach (conventional) 

Whether you’re upgrading your e-bike drivetrain or building a reliable commuter setup, the RD-U6070 delivers precise, quiet shifting engineered for Shimano’s modern electronic ecosystem.