The BOX Four Rear Derailleur is an affordable clutch-based 1x8-speed derailleur that is both simple and lightweight.

• Engineered with BOX's "8 is Enough" drivetrain philosophy
• Compatible with standard derailleur hanges (non-direct mount)
• Limited Slip Clutch
• Bearing pulleys
• Nylon composite knuckle
• Direct channel cable stay
• Color: Black
• Largest Cog: 42
• Rear Derailleur Mount Type: 10x1 Standard
• Chain Wrap Capacity (teeth): 31
• Rear Der/Shifter Compatibility: BOX 8-Speed
• Designed for ebike: Yes
• Cage Length: Medium
• Drivetrain Speeds: 8