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. Titan 18x9 5x112 ET42 Gunmetal
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Titan,18x9,5x112,E42,Gunmetal Learn More
  2. Titan 18x9 5x112 ET42 Flat Black 2
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Titan,18x9,5x112,E42,Flat Black 2 Learn More
  3. Titan 18x9 5x112 ET42 Bronze
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Titan,18x9,5x112,E42,Bronze Learn More
  4. 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
  5. Strike 18x8.5 5x112 ET44 Flat Black 2
    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
  6. Sprint 18x8.0 5x112 ET45 White
    Excl. VAT: £191.66 Incl. VAT: £229.99
    Sprint 18x8.0 5x112 ET45 White Learn More
  7. Sprint 18x8.0 5x112 ET45 Silver
    Excl. VAT: £191.66 Incl. VAT: £229.99
    Sprint 18x8.0 5x112 ET45 Silver Learn More
  8. Sprint 18x8.0 5x112 ET45 Gunmetal
    Excl. VAT: £191.66 Incl. VAT: £229.99
    Sprint 18x8.0 5x112 ET45 Gunmetal Learn More
  9. Sprint 18x8.0 5x112 ET45 Black
    Excl. VAT: £191.66 Incl. VAT: £229.99
    Sprint 18x8.0 5x112 ET45 Black Learn More
  10. Slip 18x8.5 5x112 ET45 White
    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

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