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. HM3 15x7.0 4x100 ET40 Silver with Polished Lip
    Excl. VAT: £137.50 Incl. VAT: £165.00
    HM3, 15x7.0, 4x100, ET40, Silver with Polished Lip. Learn More
  2. LC888 19x10 5x120 ET37 Hyper Silver
    Excl. VAT: £195.83 Incl. VAT: £235.00
    LC888,19,10,5120,ET37,Hyper Silver Learn More
  3. LC888 19x10.5 5x120 ET25 Hyper Silver
    Excl. VAT: £200.00 Incl. VAT: £240.00
    LC888,19,10.5,5120,ET25,Hyper Silver Learn More
  4. R20 15x6 4x100 ET29 Silver with Black Centre
    Excl. VAT: £141.67 Incl. VAT: £170.00
    R20 15x6 4x100 ET29 Silver with Black Centre - Carefully sized for E10 BMW models; 15x6.0 ET29 - Lightweight: 6.33kg - Optional Centre Cap Plate Learn More
  5. Strike 15x8 4x100 ET20 Flat Black 2
    Excl. VAT: £141.67 Incl. VAT: £170.00
    A very popular choice for the following vehicles: Honda Civic Mazda MX5 Mk1 (NA) Mazda MX5 Mk2 (NB) Mazda MX5 Mk2.5 (NB) Toyota Starlet Vauxhall Corsa Volkswagen Polo Volkswagen Golf Learn More
  6. Strike 17x7.5 4x108 ET40 Flat Black 2
    Excl. VAT: £150.00 Incl. VAT: £180.00
    The perfect fitting wheel for: Ford Fiesta MKV Ford Fiesta MKVI Ford Fiesta MKVII Learn More
  7. Strike 17x7.5 4x108 ET40 White
    Excl. VAT: £150.00 Incl. VAT: £180.00
    The perfect fitting wheel for: Ford Fiesta MKV Ford Fiesta MKVI Ford Fiesta MKVII Learn More
  8. Strike 17x8 5x114 ET42 Flat Black 2
    Excl. VAT: £158.33 Incl. VAT: £190.00
    Strike,17,8,5x114,ET42,Flat Black 2 Learn More
  9. Strike 17x8 5x114 ET42 Gunmetal
    Excl. VAT: £158.33 Incl. VAT: £190.00
    Strike,17,8,5x114,ET42,Gunmetal Learn More
  10. Strike 17x8 5x114 ET42 Speed Bronze
    Excl. VAT: £158.33 Incl. VAT: £190.00
    Strike,17,8,5x114,ET42,Speed Bronze Learn More

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