Rear Hubs
Sturmey Archer S-RF3 3 speed freewheel hub kit
Sale $ 95 USD
89.7 EUR
76.7 GBP
14785 JPY
3084 TWD
Introduction Spec
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The S-RF3 3 speed freewheel hub is equivalent in virtually all aspects to Brompton BSR hub originally equipped on the 3 speed Brompton. This kit is well suited for replacing the worn out BSR, as well as converting your Brompton into a 3 speed.
This kit includes the following:
- S-RF3 freewheel hub, 28H, 111mm O.L.D.
- Sturmey Archer SLS30 thumb shifter
- Hub fitting kit (alxe nuts, guide nut, cable anchor, non-turn washers, indicator chain, and circlip)
- Shifter fitting kit (gear cable, cable housing)
- 3/32" sprocket, per selected size
This kit is for those who cant build their own wheels. If you can't, no sweat! We can built it for you. Just see our custom built wheels section.
We have assembled the gear inches for various combinations of sprokets and chainrings here, which may help you select the right sprocket.
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- Hub Shell Material - 6061 Aluminum
- Axle Diameter - 13/32” Slotted
- Axle Length - 148mm
- Over Locknut Dimension - 111mm
- Spoke Holes - 28
- Spoke Compatibility - 13g or 14g
- Flange PCD: 67mm
- Weight - 1020g
Gear Ratio:
1st Gear: 0.75 (-25.0%)
2nd Gear: 1.00 (Direct Drive)
3rd Gear: 1.33 (+33.3%)
Overall range: 178%
