Universal Bicycle 36-hole 3/8" rear wheel hub $ 14.84 description: This is a 36-hole rear hub for bicycles. 36 round holes for assembling the shelf. Easy to install on the flywheel with wheel axle design. specification: Product name: rear wheel hub Number of holes: 36 Shaft diameter: standard 3/8 inch Total length: 175mm / 6.89 inches
