Chris King ISO Singlespeed rear hub – Chris King Precision Components
D252SB – Single Speed Hub – Novatec USA E-SHOP
ORIGIN8 SS-1101 Single Speed Hubs #37567
Amazon.com: Bike Rear Wheel Hub, Universal Bike 36 Holes 14T Rear Wheel Hub, Solid Axle Metal Disc Rear Hub Set, Bicycle Fittings, Fit for V-brake, Holding Brake, BMX, Single Speed Bike :