Shimano RD-U2000 ESSA Derailleur 8 Speed

The Shimano ESSA RD-U2000 is an 8-speed rear derailleur built for 1x8 drivetrains on mountain, gravel, and urban city bikes.

Key Specifications

• Speeds: 8-speed (1x8 setup)
• Max Low Sprocket: 45T (minimum low sprocket: 45T)
• Max Top Sprocket: 11T
• Total Capacity: 34T
• Pulley Teeth: 11/11T
• Chain Compatibility: HG 8/7/6-speed chains
• Mount Type: Direct attachment mount
• Weight: 367 grams

Core Features

• Shimano Shadow RD: Low-profile design hugs the frame to reduce the risk of damage on tight trails or rough gravel.
• Chain Stability: Optimized geometry and spring tension limit chain slap and prevent dropped chains.
• Cross-Compatibility: Designed to work smoothly across entry-level 8-speed setups (including select Altus, Acera, and Tourney TX components).
• Cassette Pairing: Engineered to handle wide-range 1x8 cassettes up to a 45T low gear