Measurement & Verification

How to Inspect Used Alloy Wheels for Cracks and Repairs A used alloy wheel should be inspected for structural damage before you verify whether it fits your vehicle. A wheel can hav...

Backspacing is the distance from a wheel’s hub-mounting surface to its inner rim edge. It is normally expressed in inches and is used to estimate how far a wheel extends inward tow...

An OEM wheel label can provide useful identification and dimensional data, but not every number on the sticker has the same fitment value. The safest approach is to treat the label...

Identify the wheel’s lug-seat shape before choosing lug nuts The lug nut seat is the contact surface between the wheel and the lug nut. Its shape must match the wheel exactly. The ...

A static wheel clearance test is a screening procedure used to determine whether one questionable wheel is likely to fit before you buy a complete set. It can identify obvious prob...

Wheel weight and wheel load rating describe different properties. Wheel weight is the mass of the wheel itself, usually expressed in kilograms or pounds. Load rating is the maximum...

How to Check Wheel-Bolt Length for a Different Wheel Changing to a different wheel does not automatically mean the original wheel bolts will fit. The new wheel may have a different...

How to Measure Wheel Offset at Home A wheel’s offset is the distance between its mounting face and the wheel’s true centerline. It is normally expressed in millimetres and marked a...

Wheel stamps that matter for fitment Used wheels often carry several cast, engraved, or stamped markings. Some identify the wheel’s size and fitment; others are manufacturing, cert...

How to Use a Brake-Clearance Template on a Wheel A brake-clearance template is used to compare the space inside a wheel with the size and position of a brake caliper. It can show w...