Welcome to Rota Wheels UK - the home of Rota Wheels in Europe

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

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
Data table
ExistingNew
Tyre Diameter631.9mm625.3mm
Tyre Circumference1985.2mm1964.4mm
Additional PokeN/A
Inboard ClearanceN/A
Gearing ChangeN/A1.01%
Speedo at 30mph30mph
Speedo at 60mph60mph
Ride Height ChangeN/A
Arch Gap ChangeN/A

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  1. Force 17x7.5 4x100 ET45 White
    Excl. VAT: £150.00 Incl. VAT: £180.00
    Force,17,7.5,4100,ET45,White Perfect for the MK4 Mazda MX5 Learn More
  2. Force 17x7.5 5x114 ET45 White
    Excl. VAT: £150.00 Incl. VAT: £180.00
    A hugely popular wheel for the following vehicles: Honda Accord Honda Civic Type R (EP3) Hyundai Coupe Lexus IS200 Mazda 3 Mazda MX5 (MK3 NC) Suzuki Swift Sport Toyota Corolla Learn More
  3. Force 17x8 5x100 ET35 White
    Excl. VAT: £158.33 Incl. VAT: £190.00
    Force,17,8,5100,ET35,White Learn More
  4. Force 17x8 5x114 ET35 White
    Excl. VAT: £158.33 Incl. VAT: £190.00
    Force,17,8,5114,ET35,White Learn More
  5. Force 18x8.5 5x100 ET48 White
    Excl. VAT: £212.50 Incl. VAT: £255.00
    The perfect fitting wheel for: Audi A3 (Spacers may be needed) Skoda Octavia (Spacers may be needed) Subaru BRZ Subaru Impreza Toyota GT86 VW Golf MKIV (Spacers may be needed) Learn More
  6. Force 18x8.5 5x108 ET42 White
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Force,18,8.5,5108,ET42,White The perfect fitting wheel for any Ford Focus ST / RS Learn More
  7. Force 18x8.5 5x112 ET45 White
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Force,18,8.5,5112,ET45,White Learn More
  8. Force 18x8.5 5x114 ET48 White
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Force,18,8.5,5114,ET48,White Learn More
  9. Force 18x9 5x100 ET35 White
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Force,18,9,5100,ET35,White Learn More
  10. Force 18x9 5x112 ET38 White
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Force,18x9,5x112,ET38,White Learn More

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