Plus-Sizing or Up-Stizing are two terms given to the practice of increasing the diameter of your tyres and wheels whilst simultaneously reducing the profile of your tyres to keep the overall rolling radius the same. Up-Sizing/Plus-Sizing will improve the handling of your car. Each step will reduce the proportion of flexible tyre 'sidewall' to rigid alloy. This will improve response, will help keep the tyre tread square to the road and will improve your car's 'feedback'. If done properly speedo and odometer accuracy will be retained and the car's sure to look better. Talk to one of our experts to find suitable up-sizing alternatives for your vehicle.