Sturmey Archer 3sp hub, Disc, RS-RK3 , 36Hole , Black . 135mm (Includes 18T cog, Twist Grip shifter & kit)
 
3 Speed Disc Brake Rear Hub
Features
• 3-Speed with wide gear ratio of 177%
• Gear steps of 33% and 33%
• Rotary gear selector without protrusions outside the frame
• 6061 Aluminium hub shell
• Compatible with 17 to 19 teeth sprocket
• Anodised black alloy finish
• Weight - 1095g
Gear Ratio
• Overall Range - 177%
• Gear 1 - 75% (Gear 2 - 25%%)
• Gear 2 - 100% (Direct Drive)
• Gear 3 - 133% (Gear 2 + 33%)