Description The Sturmey Archer 3 Speed Freewheel Rear Hub S-RF3 is an internally geared hub kit for 36H, 117 OLD, 163mm with an 18T Cog & Classic Shifter. STURMEY ARCHER 3 SPEED FREEWHEEL REAR HUB S-RF3 FEATURES & SPECS • Classic 3-speed internal gear hub with gear ratio of 177% • Gear steps of 33% and 33% • 6061 Aluminium hub shell • 36 spoke holes • Compatible with 13 to 24 teeth sprocket • Polished Silver finish • Weight – 970g Gear Ratio • Overall Range – 177% • Gear 1 – 75% (Gear 2 – 25%) • Gear 2 – 100% (Direct Drive) • Gear 3 – 133% (Gear 2 33%) The SRF3 comes with shifter, cable and 18T cog. Need a wheel built? Want to build a wheel with this hub? We build wheels with Sturmey Archer hubs in our workshop in Richmond, give us a call for a quote on our IGH wheel building!