Explore the benefits of trekking and urban e-biking with this durable CUES RD-U8020 Shadow+ rear derailleur's smooth and decisive shifting performance for 2x11-speed systems. A low-profile design and chain stabilization give riders the confidence to keep going. Plus, its premium machine-finished aluminum textures showcase the integration of design and engineering. ONLY compatible with CUES 11-Speed LINKGLIDE shifters. ONLY compatible with CUES 10- and 11-Speed LINKGLIDE shifters. Seamless shifting and pedaling performance that's made to last. Chain stabilizer reduces chain drop, slap and noise. Shadow+ low-profile design protects rear derailleur from obstacles in a wide variety of riding scenes. Stylish and polished aluminum finish with machine-cut textures. 11t upper and 13t lower pulley wheels. Compatible with LINKGLIDE AND HG 11-speed chains. Item Specifications: Largest Cog: 45, Color: Black, Color: Silver, Rear Der/Shifter Compatibility: Mountain, Rear Derailleur Mount Type: Rear Direct Mount, Rear Derailleur Mount Type: 10x1 Standard, Drivetrain Speeds: 11, Designed for ebike: Yes, Chain Wrap Capacity (teeth): 48, Cage Length: Long,