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. FF01 19x8.5 5x112 ET45 Flat Black 2
    Excl. VAT: £258.33 Incl. VAT: £310.00
    FF01,19x8.5,5x112,ET45,Flat Black 2 Introducing the latest from Rota Wheels ~ the 360 Flow Forged FF01’s. Learn More
  3. FF03 19x8.5 5x120 ET45 Flat Black 2
    Excl. VAT: £258.33 Incl. VAT: £310.00
    FF03,19x8.5,5x120,ET45,Flat Black 2 Introducing the latest from Rota Wheels ~ the 360 Flow Forged FF03’s. Learn More
  4. Force 18x8.5 5x100 ET48 Flat Black 2
    Excl. VAT: £212.50 Incl. VAT: £255.00
    The perfect fitting wheel for: Audi A3 (Spacers may be needed) Skoda Octavia (Spacers may be needed) Subaru BRZ Subaru Impreza Toyota GT86 VW Golf MKIV (Spacers may be needed) Learn More
  5. Formula B 18x8.5 5x100 ET44 Steel Grey
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Formula B 18x8.5 5x100 ET44 Steel Grey Learn More
  6. Formula B 18x8.5 5x114.3 ET44 Steel Grey
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Formula B 18x8.5 5x114.3 ET44 Steel Grey Learn More
  7. Grid 18x8.5 5x108 ET42 Flat Black 2
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Grid,18,8.5,5108,ET42,Flat Black 2 The perfect wheel for your Ford Focus RS / ST Learn More
  8. Grid 18x8.5 5x108 ET42 Steelgrey
    Excl. VAT: £212.50 Incl. VAT: £255.00
    The perfect fitting wheel for: Focus RS MK2 Focus RS MK2.5 Focus RS MK3 Focus ST2 Focus ST2.5 Focus ST3 Volvo C30 Learn More
  9. Grid 18x8.5 5x110 ET35 Flat Black 2
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Grid,18,8.5,5110,ET35,Flat Black 2 Learn More
  10. Grid 18x8.5 5x112 ET44 Flat Black 2
    Excl. VAT: £212.50 Incl. VAT: £255.00
    Grid,18,8.5,5112,ET44,Flat Black 2 Learn More

Grid List

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