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. D154 18x8.5 4x108 ET35 Flat Black 2
    Excl. VAT: £212.50 Incl. VAT: £255.00
    D154,18,8.5,4108,ET35,Flat Black 2 Learn More
  2. Gra 17x7.5 5x100 ET48 Flat Black 2
    Excl. VAT: £150.00 Incl. VAT: £180.00
    Gra,17,7.5,5100,ET48,Flat Black 2 Learn More
  3. Gra 18x7.5 5x100 ET48 Flat Black 2
    Excl. VAT: £166.67 Incl. VAT: £200.00
    Gra,18,7.5,5100,ET48,Flat Black 2 Learn More
  4. Pro R 18x8.5 5x112 ET45 Flat Black 2
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Pro R 18x8.5 5x112 ET45 Flat Black 2 Learn More
  5. Pro R 18x8.5 5x114 ET30 Flat Black 2
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Pro R 18x8.5 5x114 ET30 Flat Black 2 Learn More
  6. Pro R 18x8.5 5x114 ET44 Flat Black 2
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Pro R 18x8.5 5x114 ET44 Flat Black 2 Learn More
  7. Pro R 19x10 5x112 ET30 Flat Black 2
    Excl. VAT: £250.00 Incl. VAT: £300.00
    Pro R 19x10 5x112 ET30 Flat Black 2 Learn More
  8. Pro R 19x10 5x114 ET20 Flat Black 2
    Excl. VAT: £250.00 Incl. VAT: £300.00
    Pro R,19x10,5x114,ET20,FlatBlack 2 Can be fitted to: Nissan 200sx S14/S14a/S15 (or 5 stud S13) Nissan Skyline GTS-T / GTT / GTR Nissan 350Z Nissan 370Z Toyota Supra Mk4 Toyota Soarer Mazda RX7 Mitsubishi Evo V-X Many other Japanese cars. Depending on your cars set up you may require arch work and or spacers to fit. If you are unsure of fitment please ask. Learn More
  9. Pro R 19x8.5 5x120 ET30 Flat Black 2
    Excl. VAT: £229.17 Incl. VAT: £275.00
    Pro R,19x8.5,5x120,ET30,Flat Black 2 Learn More
  10. ProR 18x9.5 5x114 ET20 Flat Black 2
    Excl. VAT: £229.17 Incl. VAT: £275.00
    ProR,18,9.5,5114,ET20,Flat Black 2 Learn More

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