Fitment Guide

Understand the dimensions

A wheel needs to suit the vehicle, tyre, brakes and suspension as a complete combination. The examples below explain terminology; they are not specifications or fitment recommendations for a TKZ product.

• Diameter

  The diameter describes the wheel's tyre bead-seat diameter, not the outside edge of the rim. The tyre's matching rim diameter must agree, while overall tyre size and brake clearance also need checking.

• Width

  Width is measured between the tyre bead seats. It affects which tyre widths are suitable and how much space the assembly needs on each side. Check the tyre manufacturer's approved rim-width range.

• Offset / ET

  Offset is the distance between the wheel's centreline and mounting face. Positive offset places the mounting face toward the outside of the wheel; negative offset places it toward the inside. For an otherwise comparable wheel, changing offset changes both inner and outer clearance.

• PCD / bolt pattern

  PCD describes the number of mounting holes and the diameter of the circle through their centres. For example, 5x114.3 means five holes on a 114.3 mm circle. This is an explanation only: the bolt pattern must match the vehicle's requirements.

• Centre bore and hub-centric rings

  The centre bore locates around the vehicle's hub. Where a compatible wheel has a larger bore than the hub, an appropriate hub-centric ring is required to centre it. Rings do not correct an incorrect bolt pattern, load rating or offset; have the complete arrangement checked.

• Load rating

  Load rating describes the load a wheel is designed to carry under its specified conditions. Check the vehicle's requirements and the wheel's documented rating. Appearance and manufacturing method cannot establish load suitability.

• Tyre size compatibility

  The tyre must suit the wheel's diameter and width as well as the vehicle's load, speed and overall-size requirements. Check tyre manufacturer guidance and vehicle requirements with a qualified installer.

• Brake caliper clearance

  Diameter alone does not establish brake clearance. Spoke shape, barrel profile and mounting geometry all affect the space around the caliper. Upgraded brakes need to be checked for caliper clearance before ordering, using measurements or a suitable clearance template.

How to find your vehicle's specifications

Cross-check the available sources. Factory information describes the original configuration; check modifications separately.

• Owner's manual

  Start with the manufacturer's wheel and tyre information and any guidance for your vehicle variant.

• Tyre placard

  Check your vehicle's tyre placard for the original tyre sizes and pressures. Check wheel dimensions and later modifications separately.

• Existing wheel markings

  Check the markings for diameter, width and offset information. Photograph them for reference, but do not assume previously fitted wheels are correct or roadworthy.

• Ask us before ordering

  Send your year, make, model and variant, current wheel and tyre details, and any changes to brakes or suspension. We can discuss what further information is needed.

Before you buy

Have the proposed combination checked before purchasing or installing, particularly where the vehicle has been modified.

• Confirm mounting and capacity

  Check PCD, centre bore, any required rings, appropriate fasteners and the documented wheel load rating.

• Check space on both sides

  Review diameter, width and offset together, including caliper, suspension, guard and steering clearance through the vehicle's operating range.

• Match the tyres

  Confirm approved rim width, tyre diameter, load and speed requirements, and any other requirements for the vehicle.

• Plan the installation

  Use a qualified installer and follow the vehicle and wheel manufacturer's instructions. Resolve uncertainty before fitting tyres or using the wheels.

Australian roadworthiness and insurance

Wheel and tyre changes must comply with the vehicle standards that apply in your state or territory. Check the roadworthiness and insurance implications with your state transport authority and insurer before making changes. This guide does not quote legal limits or replace professional fitment advice.