These are an anodized aluminum wheel hub. We offer them in many sizes, colors, and lengths to fit your needs. The 50mm hub comes pre slotted for a 8mm keyway. The 30mm hub is slotted for a 6 or 8mm keyway. This hub will fit almost all European made karts and some American made karts. After measuring your current hubs if you are still unsure of the size, please feel free to give us a call.
- 3/58 Bolt Pattern: 3, 8mm wheel studs pre-installed that are 3 on 58. 3 on 58 stands for 3 wheel studs at 58mm apart. 58mm is measured from the outside of one stud to the outside of another.