4 Speed
X-RD4
4 Speed 70mm Drum Brake Rear Hub
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
Gear Ratio
• Overall Range - 210%
• Gear 1 - 100% (Direct Drive)
• Gear 2 - 128% (Gear 1 + 28%)
• Gear 3 - 164% (Gear 2 + 28%)
• Gear 4 - 210% (Gear 3 + 28%)
Specification
SPECIFICATIONS - IGH S40.pdf (289 kB)