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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10 Item(s)

  1. EG6 16x7 4x108 ET35 Gunmetal with Polished Lip
    Excl. VAT: £139.17 Incl. VAT: £167.00
    EG6 16x7 4x108 ET35 Gunmetal with Polished Lip Learn More
  2. Grid 2 17x7.5 4x108 ET25 Steelgrey
    Excl. VAT: £150.00 Incl. VAT: £180.00
    Grid2,17,7.5,4108,ET25,Steelgrey Learn More
  3. Grid-V 15x7 4x108 ET20 Gunmetal with Polished Lip
    Excl. VAT: £137.50 Incl. VAT: £165.00
    Grid-V,15,7,4108,ET20,Gunmetal with Polished Lip Learn More
  4. MXR 17x7.5 4x108 ET40 Gumetal with Polished Lip
    Excl. VAT: £150.00 Incl. VAT: £180.00
    MXR,17,7.5,4108,ET40,Gunmetal with Polished Lip Learn More
  5. RB 15x7 4x108 ET30 Gunmetal with Polished Lip
    Excl. VAT: £137.50 Incl. VAT: £165.00
    RB,15,7,4108,ET30,Gunmetal with Polished Lip Learn More
  6. Recce 17x7.5 4x108 ET25 Steelgrey
    Excl. VAT: £150.00 Incl. VAT: £180.00
    Recce,17,7.5,4108,ET25,Steelgrey Learn More
  7. Recce 17x8 4x108 ET40 Steelgrey
    Excl. VAT: £158.33 Incl. VAT: £190.00
    The perfect fitting wheel for: Ford Fiesta MKV Ford Fiesta MKVI Ford Fiesta MKVII Learn More
  8. Slip 17x7.5 4x108 ET25 Steelgrey
    Excl. VAT: £150.00 Incl. VAT: £180.00
    Slip,17,7.5,4108,ET25,Steelgrey Learn More
  9. Titan 18x9 4x108 ET20 Steelgrey
    Excl. VAT: £216.67 Incl. VAT: £260.00
    Titan 18x9 4x108 ET20 Steelgrey Specialist fitment specified for Escort Cosworth. These can fit other vehicles too if the specs work. Learn More
  10. Kyusha 17x9 4x108 ET20 Gunmetal with a Polished Lip
    Excl. VAT: £166.67 Incl. VAT: £200.00
    Kyusha,17,9,4108,ET20,Gunmetal with a Polished Lip Learn More

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10 Item(s)