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. TFS301 16x7 4x100 ET40 Speed Bronze
    Excl. VAT: £112.50 Incl. VAT: £135.00
    A hugely popular wheel for the following vehicles: Honda Civic Mazda MX5 Mitsubishi Colt Seat Arosa Seat Ibiza (4 stud) Suzuki Swift Toyota Starlet Toyota Yaris Vauxhall Corsa (4 stud) Volkswagen Lupo Volkswagen Golf Mk1 / Mk2 Volkswagen Polo (4 stud) Learn More
  2. Strike 18x8.5 5x114 ET44 Speed Bronze
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Strike,18,8.5,5114,ET44,Speed Bronze Learn More
  3. Strike 18x8.5 5x112 ET44 Speed Bronze
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Hugely popular wheels with the following vehicles and many more: Audi A3 Audi A4 Seat Leon Skoda Octavia VW Caddy VW Golf MkV VW Golf MkVI VW Golf MkVII Learn More
  4. Strike 17x8 5x114 ET42 Speed Bronze
    Excl. VAT: £158.33 Incl. VAT: £190.00
    Strike,17,8,5x114,ET42,Speed Bronze Learn More
  5. RM100 18x9 5x120 ET40 Flat Black with Matte Polished Face

    Regular Price: £245.00

    Special Price Excl. VAT: £183.75 Incl. VAT: £220.50

    RM100,18,9,5120,ET40,Flat Black with Matte Polished Face Learn More
  6. 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
  7. Grid-V 15x9 5x114 ET0 Speed Bronze
    Excl. VAT: £154.17 Incl. VAT: £185.00
    Grid-V,15,9,5114,ET0,Speed Bronze Learn More
  8. Grid-V 15x8 4x114 ET0 Speed Bronze
    Excl. VAT: £141.67 Incl. VAT: £170.00
    Grid-V,15,8,4114,ET0,Speed Bronze Learn More
  9. Grid-V 15x8 4x100 ET0 Speed Bronze
    Excl. VAT: £154.17 Incl. VAT: £185.00
    Grid-V,15,8,4100,ET0,Speed Bronze Learn More
  10. Grid Offroad 15x7 6x139 ET35 Speed Bronze
    Excl. VAT: £137.50 Incl. VAT: £165.00
    Grid Offroad,15,7,6139,ET35,Speed Bronze Learn More

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