• Sections:
• Tyres
• How do I find my tyre size?
• How do I know what tyres I should choose?
• How do I find out more about the brands?
• Why do some tyres have vehicle manufacturers listed against them?
• What do XL and Reinforced mean?
• What tyres will offer good mileage?
• Do you sell rims or alloys as well as tyres?
• Can I change the size of tyre I am ordering?
• What are extra load tyres?
• How long do tyres last?
• What tyres last the longest UK?
• What is the difference between budget, mid-range, and premium tyres?
• How much is a new tyre?
• How much to fit tyres?
• What is aspect ratio for tyres?
• How much are my tyres based on inch?
• What are low profile tyres?
• What are energy saving tyres and are they worth it?
• What is the advantage of energy saving tyres?
• What are homologated tyres?
• How To Guides
• Order Process
• Payment
• Tyre Fitting
• Mail Order
• Tyre Labels
• Offers & Promotions
• Customer Care
• Network Partners
• Help Home Page

Can I change the size of tyre fitted to my vehicle?

Converting to a different size of tyre is possible, but it must be done within strict criteria.

It is important to remember that you will need the diameter to remain as close as possible to the original size.

If the size is too different this affects the time/length it takes for a full tyre revolution (the tyre rolling circumference), which will cause your speedometer to display incorrect readings and your gearing will be adversely affected.

Please do not fit a different sized tyre without first consulting an expert. There are several online conversion sites that can help you. Neither Blackcircles.com or blackcircles.com fitters can be held responsible for any changes made to the size of tyre fitted that lead to issues in terms of performance or damage to the vehicle.