Sturmey Archer S2C Duomatic 2-sp coaster brake hub, 32h 116mm OL
– Kick-shift 2-speed hub with coaster brake – Benefits include its simple backpedal-action shifting/braking and no cables or shifters – 6061 aluminum hub shell with 13/32″ slotted solid axle (162mm overall axle length) – Gear ratio range of 138% – Includes 22 tooth 3-spline cog – Optional: matching front track hub, use UR-5501.