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. Blitz 17x7.5 4x100 ET35 Gunmetal
    Excl. VAT: £145.83 Incl. VAT: £175.00
    A hugely popular wheel for the following vehicles: Mini R53 Mini R56 Learn More
  2. Blitz 17x7.5 4x100 ET35 Gunmetal
    Excl. VAT: £145.83 Incl. VAT: £175.00
    A hugely popular wheel for the following vehicles: Mini R53 Mini R56 Learn More
  3. D154 17x8 4x100 ET35 Gunmetal
    Excl. VAT: £158.33 Incl. VAT: £190.00
    D154,17,8,4100,ET35,Gunmetal Learn More
  4. Force 17x7.5 4x100 ET45 Gunmetal
    Excl. VAT: £145.83 Incl. VAT: £175.00
    Force,17,7.5,4100,ET45,Gunmetal Perfect for the MK4 Mazda MX5 Learn More
  5. GTR 17x7.5 4x100 ET45 Gunmetal
    Excl. VAT: £150.00 Incl. VAT: £180.00
    GTR,17,7.5,4100,ET45,Gunmetal Learn More
  6. Kyusha 15x7 4x100 ET38 Flat Black with Speed Bronze Lip
    Excl. VAT: £133.33 Incl. VAT: £160.00
    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) Lower offset wheels may require some arch work to avoid the tyres rubbing. Learn More
  7. Kyusha 15x8 4x100 ET0 Flat Black Bronze Lip
    Excl. VAT: £141.67 Incl. VAT: £170.00
    Serious 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
  8. 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
  9. Spec8 15x7 4x100 ET35 Gunmetal
    Excl. VAT: £133.33 Incl. VAT: £160.00
    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) Lower offset wheels may require some arch work to avoid the tyres rubbing. Learn More
  10. Sprint 17x7.5 4x100 ET42 Gunmetal
    Excl. VAT: £150.00 Incl. VAT: £180.00
    Sprint 17x7.5 4x100 ET42 Gunmetal. Learn More

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