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 5x114 ET45 Gloss Black
    Excl. VAT: £145.83 Incl. VAT: £175.00
    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
  2. Force 17x8 5x100 ET35 Gloss Black
    Excl. VAT: £158.33 Incl. VAT: £190.00
    Force,17,8,5100,ET35,Gloss Black Learn More
  3. Force 18x10.5 5x114 ET40 Steelgrey
    Excl. VAT: £245.83 Incl. VAT: £295.00
    Force,18,10.5,5114,ET40,Steelgrey Learn More
  4. Force 18x8.5 5x108 ET42 Gloss Black
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Force,18,8.5,5108,ET42,Gloss Black The perfect fitting wheel for any Ford Focus ST / RS Learn More
  5. Force 18x8.5 5x112 ET45 Gloss Black
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Force,18,8.5,5112,ET45,Gloss Black Learn More
  6. Force 18x9 5x112 ET38 Gloss Black
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Force,18x9,5x112,ET38,Gloss Black Learn More
  7. Force 18x9 5x114 ET27 Gloss Black
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Force,18,9,5114,ET27,Gloss Black Learn More
  8. Force 18x9 5x114 ET35 Steelgrey
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Force,18,9,5114,ET35,Steelgrey Learn More
  9. GTR 18x9.5 5x114 ET30 Gloss Black
    Excl. VAT: £229.17 Incl. VAT: £275.00
    GTR,18,9.5,5114,ET30,Gloss Black Learn More
  10. GTR 19x9 5x108 ET42 Steelgrey
    Excl. VAT: £233.33 Incl. VAT: £280.00
    The perfect fitting wheel for: Focus RS MK2 Focus RS MK2.5 Focus RS MK3 Focus ST2 Focus ST2.5 Focus ST3 Volvo C30 Learn More

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