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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6 Item(s)

  1. X04 15x8 4x100 ET0 Gunmetal with Polished LipM

    Regular Price: £150.00

    Special Price Excl. VAT: £112.50 Incl. VAT: £135.00

    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
  2. X04 15x8 4x100 ET0 Matte Red with Matte Polished Lip

    Regular Price: £150.00

    Special Price Excl. VAT: £112.50 Incl. VAT: £135.00

    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
  3. X04 15x8 4x100 ET0 Silver with Matte Polished Face

    Regular Price: £150.00

    Special Price Excl. VAT: £112.50 Incl. VAT: £135.00

    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
  4. X04 15x8 4x114 ET0 Gunmetal with Polished LipM

    Regular Price: £150.00

    Special Price Excl. VAT: £112.50 Incl. VAT: £135.00

    X04,15,8,4114,ET0,Gunmetal with Polished LipM Learn More
  5. X04 15x8 4x114 ET0 Matte Red with Matte Polished Lip

    Regular Price: £150.00

    Special Price Excl. VAT: £112.50 Incl. VAT: £135.00

    X04,15,8,4114,ET0,Matte Red with Matte Polished Lip Learn More
  6. X04 15x8 4x114 ET0 Silver with Matte Polished Face

    Regular Price: £150.00

    Special Price Excl. VAT: £112.50 Incl. VAT: £135.00

    X04,15,8,4114,ET0,Silver with Matte Polished Face Learn More

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6 Item(s)