The configuration used to secure a wheel to a vehicle hub, specifying the number and arrangement of lug bolts, is a critical aspect of wheel compatibility. As an example, a 4/137 configuration indicates four lug holes arranged in a circle with a 137mm diameter.
This specification determines whether a particular wheel will properly mount to a specific machine. Using the correct dimensions is crucial for safe operation, preventing wheel detachment and potential damage to the vehicle’s hub or braking system. Historically, variations have arisen across different manufacturers and vehicle types, necessitating precise matching for proper fitment.