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Get the right fitting wheels

There’s a wide choice of wheels out there, but only a select few will be ideal for your vehicle and application. Use out fitment guide to help shortlist some wheels options.

Diameter

Changing wheels? Avoid odometer and speedometer issues and keep the same wheel diameter.

The diameter is an important factor to consider when replacing your vehicle’s original wheels. Diameter is measured not from the face of the wheel, but instead from the bead seats where the tyre fits onto it. So if you plan to increase a wheel diameter you must also reduce the tyre sidewall height to maintain the same overall rolling diameter.

Choosing a larger diameter wheel will dramatically improve the look of your vehicle and improve responsiveness, at the expense of ride comfort due to the lower profile tyres required.

If selecting a smaller diameter wheel, check to see that it will clear your brake callipers.

 

Width

Choice of width must be looked at in conjunction with wheel offset. Wheel width affects how the wheels will fit under your vehicle’s guards and also what tyres you can fit to them.

Running narrower wheels tends to improve vehicle ride comfort and cornering in the wet. Conversely wider wheels allow you to fit wider tyres, which will generally improve dry traction and off-road performance for 4WD vehicles. This is at the expense of wet cornering and some ride comfort.

 

Wheel Offset Diagram

Offset- The in’s and out’s of correct fitment

The offset of a wheel determines where it will sit in relation to the hub and also your vehicle’s guard and bodywork. Each vehicle has an optimum offset range and the further you deviate from it, the higher the chances are of the wheel not fitting properly.

When compared to the offset of your vehicle’s factory OEM wheels, an aftermarket wheel with a negative (higher) offset will stick out further from the side of the car, potentially allowing it to hit the guards whilst cornering or going over bumps. This may also make the vehicle illegal for road use. Alternatively, an aftermarket wheel with a positive (lower) offset will sit further inwards from the side of the car, potentially causing it to hit or rub on suspension components or the inner walls of the wheel well.

PCD Diagram

Wheel-PCD

When changing from your vehicle’s factory OEM wheels, it is also vital that your new wheels feature the exact same bolt circle measurement. You might have seen wheel descriptions such as 5×114.3 or 6×139.7 . This is code for the number of bolts and diameter of the holes the bolts pass through.

Steel or Alloy

There’s an age old debate around the strength and durability of Alloy Wheels vs Steel Wheels

Steel Wheels are:

  • More robust and last longer in off-road and mining applications
  • Cheaper than alloy wheels.
  • Will never split or crack.
  • May bend on hard impacts but can be hammered back into shape as an emergency fix.

Alloy Wheels are:

  • Available in a wider range of styles, finishes and sizes.
  • May crack or split from very hard impacts are often non-repairable.
  • Are usually more expensive than steel wheels.