Help Centre
The Numbers Before the Design
Last updated: September 12, 2026
A custom design starts with two numbers: the diameter and the fitment. Get those right and the material conversation can be as adventurous as you like.
Most modern cars measure between 360 mm and 380 mm across the rim.
Measure First
Take the reading across the wheel face with the car straight.
- Centre the wheel and straighten the front wheels.
- Run a tape across the centre hub.
- Read outer edge to outer edge in millimetres.
- Write it down with the chassis number.
If the reading is between two sizes, use the larger figure. A short reading usually means the tape was not centred.
Where Your Car Probably Sits
Compact sports models sit near 340–350 mm, hatchbacks around 360 mm, most modern saloons between 365 and 370 mm, larger saloons and SUVs near 380 mm, and vans or trucks at 390–400 mm.
| Diameter | Inches | Class |
|---|---|---|
| 340–350 mm | 13.4–13.8 in | Compact sports |
| 360 mm | 14.2 in | Hatchback |
| 365–370 mm | 14.4–14.6 in | Modern saloon |
| 380 mm | 15.0 in | Large saloon / SUV |
| 390–400 mm | 15.4–15.8 in | Van / truck |
Small, Standard or Large
Smaller rims respond faster and feel busier; larger ones add leverage and calm the car at low speed. Rim thickness changes as much again, because it alters where the shoulders sit.
Size Inside a Custom Order
Check that any new diameter keeps the spline, hub and airbag mounting correct. A smaller rim may block the instrument cluster and a larger one may foul your legs.
Most custom orders keep the original diameter and put the personality into material, stitch, thickness and shape. If you want to change size, we confirm feasibility before the design is cut.
Frequently Asked Questions
How do I measure my wheel?
Outer edge to outer edge across the centre of the rim, with the front wheels straight.
What size is standard?
Most modern cars sit between 360 mm and 380 mm.
Can I choose a different diameter?
Sometimes, where spline, hub and airbag mounting match your car and the cluster stays visible.
Does size affect the design?
It sets the canvas. Materials, stitch and shape are chosen after the size and fitment are confirmed.
Will the airbag still fit?
The airbag mounts to the centre hub, and the original core is reused where the car's electronics require it.
What if I only want a different look?
Keep the diameter and change the covering, thickness or shape — that carries the least risk.