Front wheel axle assembly with nuts. 125mm (4.92 inch) total length. Direct replacement for SHOK Motors SX12 kids 12 inch balance bikes and SX16 youth 16 inch balance bikes as well as many other brands and models in the open market. [More Info]

Rear wheel axle assembly with nuts. Direct replacement for SHOK Motors SX12 kids 12 inch balance bikes and SX16 youth 16 inch balance bikes as well as many other brands and models in the open market. [More Info]

Rear wheel axle assembly with nuts. Direct replacement for SHOK Motors SX20 youth 20" (20 inch) balance bikes as well as many other brands and models in the open market. [More Info]

Front wheel axle assembly with nuts. 145mm (5.71 inch) total length, M10. Direct replacement for SHOK Motors SX20 youth 20" (20 inch) balance bikes as well as many other brands and models in the open market. [More Info]