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

Grid List

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8 Item(s)

  1. GKR 18x9.5 5x120 ET25 Flat Black 2
    Excl. VAT: £229.17 Incl. VAT: £275.00
    GKR,18,9.5,5120,ET25,Flat Black 2 Learn More
  2. Grid 18x9.5 5x120 ET35 Flat Black 2
    Excl. VAT: £229.17 Incl. VAT: £275.00
    Grid,18,9.5,5120,ET35,Flat Black 2 Learn More
  3. Grid 18x9.5 5x120 ET35 White
    Excl. VAT: £229.17 Incl. VAT: £275.00
    Grid,18,9.5,5120,ET35,White Learn More
  4. 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
  5. RT5 18x9.5 5x120 ET35 White

    Regular Price: £275.00

    Special Price Excl. VAT: £206.25 Incl. VAT: £247.50

    RT5,18,9.5,5120,ET35,White Learn More
  6. Slip 18x10.5 5x120 ET22 White
    Excl. VAT: £245.83 Incl. VAT: £295.00
    Slip,18,10.5,5120,ET22,White Learn More
  7. Slip 18x9.5 5x120 ET35 White
    Excl. VAT: £229.17 Incl. VAT: £275.00
    Slip,18,9.5,5120,ET35,White Learn More
  8. Slipstream 18x9.5 5x120 ET40 Flat Black 2
    Excl. VAT: £229.17 Incl. VAT: £275.00
    Slipstream,18,9.5,5120,ET40,Flat Black 2 The Slipstream has always been a classic, now brought bang up to date in 18" Sizing. Just 9.6kg in the specs listed, the ET40 Slipstream is ideally suited to Honda Civic FK2 / FK8 owners looking for a wider 18" setup. Learn More

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8 Item(s)