X-RD4 Rotary Drum Brake

Features

• 4-Speed internal gear hub with gear ratio of 210%
• Gear steps of 28%, 28% and 28%
• Rotary gear selector without protrusions outside the frame
• Direct drive in 1st gear allows use of smaller chainwheels
• A356 Aluminium hub shell
• 36 Spoke holes
• Compatible with 13 to 24 teeth sprocket
• Natural alloy finish
• Weight – 1480g