Tyre Size Calculator
Enter your existing wheel and tyre specification in 'Existing Setup' then enter the specification of your potentially new wheels and tyres to see what a difference it will make!
This tool is great for working out if your new wheels will give you more or less clearance to your suspension and wheel arches. If you have any questions or need help using it please do get in touch and we'll be happy to help you with it.
Existing setup
New setup
- Tyre diagram
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The image to the left shows your 'Existing' wheel and tyre (grey + black) with the 'New Setup' (green + black) overlaid.
This is a graphical representation of how your chosen change in wheel and tyre will affect your stance, poke and clearance.
To see the wheel to tyre ratio changes, and the Existing vs New tyres in profile select 'Tyre Image'.
For the measurements, take a look in the 'Data Table' tab.
- Tyre image
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- Data table
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Existing New Tyre Diameter 631.9mm 625.3mm Tyre Circumference 1985.2mm 1964.4mm Additional Poke N/A Inboard Clearance N/A Gearing Change N/A 1.01% Speedo at 30mph 30mph Speedo at 60mph 60mph Ride Height Change N/A Arch Gap Change N/A
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Excl. VAT: £191.67 Incl. VAT: £230.00D154,17,8,4108,ET42,Neo Chrome Learn More -
Excl. VAT: £191.67 Incl. VAT: £230.00Grid,17,8,5114,ET42,Neo Chrome Learn More -
Excl. VAT: £141.67 Incl. VAT: £170.00Serious fitment wheels for the following vehicles - Arch work may be needed! Honda Civic Mazda MX5 Mk1 (NA) Mazda MX5 Mk2 (NB) Mazda MX5 Mk2.5 (NB) Suzuki Swift Toyota Starlet Vauxhall Corsa Learn More -
Excl. VAT: £175.00 Incl. VAT: £210.00Serious fitment wheels for the following vehicles - Arch work may be needed! Honda Civic Mazda MX5 Mk1 (NA) Mazda MX5 Mk2 (NB) Mazda MX5 Mk2.5 (NB) Suzuki Swift Toyota Starlet Vauxhall Corsa Learn More -
Excl. VAT: £187.50 Incl. VAT: £225.00Grid-V,16,8,4100,ET20,Neo Chrome Learn More -
Excl. VAT: £136.67 Incl. VAT: £164.00RB 13x8 4x100 ET4 Gunmetal with Polished Lip Learn More -
Excl. VAT: £141.67 Incl. VAT: £170.00Hugely popular on: Mazda MX5 Mk1 (NA / Eunos Roadster) Mazda MX5 Mk2 (NB / Eunos Roadster) Mazda MX5 Mk2.5 (NB / Eunos Roadster) Learn More -
Excl. VAT: £154.17 Incl. VAT: £185.00RB,16,8,4100,ET35,Gunmetal with Polished Lip Learn More -
Excl. VAT: £150.00 Incl. VAT: £180.00RBR,16,8,4100,ET10,Gunmetal with Polished Lip Learn More -
Excl. VAT: £158.33 Incl. VAT: £190.00Slip,17,8,5114,ET48,Gunmetal with Polished Lip Learn More
