Sturmey Archer S-RF3 3 Speed Hub 32h Silver 120mm OLD Full Kit.

The Sturmey Archer S-RF3 is a heavy-duty 3 speed freewheel internal hub that is high performance and low maintenance. This hub is for use with rim-brake bikes only. The trim kit comes with all the parts, and includes an 18-tooth 3/32” cog. See below for compatibility and specs. 120mm, 32 hole, Silver. Hub Weight: 995g

This part will fit on:

Any bike with 120mm rear spacing and horizontal or semi-horizontal drop-outs (max 7mm thickness).

See our listing for the thumb shifter to go with this hub (sold separately).

120mm Outside Locknut Spacing

32 Hole

Classic 3-speed internal gear hub with gear ratio of 166%

6061 Aluminum hub shell

Gear Steps of -25% and +33%

Pitch Circle Diameter: 67.0 mm

Center to flange (right): 28.6 mm

Center to flange (left): 28.0 mm

Hub Weight: 995g

18T x 3/32" Cog

Gear Ratio

Overall Average - 177%

Gear 1 - 75% (Gear 2 - 25%)

Gear 2 - 100% (Direct drive)

Gear 3 - 133% (Gear 2 + 33%)