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. Grid Offroad 15x7 6x139 ET35 Speed Bronze
    Excl. VAT: £137.50 Incl. VAT: £165.00
    Grid Offroad,15,7,6139,ET35,Speed Bronze Learn More
  2. Grid Offroad 16x8 6x139 ET0 Bronze
    Excl. VAT: £155.83 Incl. VAT: £187.00
    Grid Offroad,16,8,6139,ET0,Bronze Learn More
  3. PWR 18x8.5 5x100 ET38 Hyper Silver

    Regular Price: £250.00

    Special Price Excl. VAT: £187.50 Incl. VAT: £225.00

    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
  4. PWR 19x10 5x114 ET20 Steelgrey

    Regular Price: £300.00

    Special Price Excl. VAT: £225.00 Incl. VAT: £270.00

    PWR,19,10,5114,ET20,Steelgrey Learn More
  5. PWR 19x9.5 5x114 ET20 Steelgrey

    Regular Price: £295.00

    Special Price Excl. VAT: £221.25 Incl. VAT: £265.50

    PWR,19,9.5,5114,ET20,Steelgrey Learn More
  6. RB 13x8 4x100 ET4 Gunmetal with Polished Lip
    Excl. VAT: £136.67 Incl. VAT: £164.00
    RB 13x8 4x100 ET4 Gunmetal with Polished Lip Learn More
  7. RB 15x7 4x100 ET30 Gold with Polished Lip
    Excl. VAT: £137.50 Incl. VAT: £165.00
    A hugely popular wheel for the following vehicles: Honda Civic Mazda MX5 Mitsubishi Colt Seat Arosa Seat Ibiza (4 stud) Suzuki Swift Toyota Starlet Toyota Yaris Vauxhall Corsa (4 stud) Volkswagen Lupo Volkswagen Golf Mk1 / Mk2 Volkswagen Polo (4 stud) Lower offset wheels may require some arch work to avoid the tyres rubbing. Learn More
  8. RB 15x7 4x100 ET30 Gunmetal with Polished Lip
    Excl. VAT: £137.50 Incl. VAT: £165.00
    A hugely popular wheel for the following vehicles: Honda Civic Mazda MX5 Mitsubishi Colt Seat Arosa Seat Ibiza (4 stud) Suzuki Swift Toyota Starlet Toyota Yaris Vauxhall Corsa (4 stud) Volkswagen Lupo Volkswagen Golf Mk1 / Mk2 Volkswagen Polo (4 stud) Lower offset wheels may require some arch work to avoid the tyres rubbing. Learn More
  9. RB 15x7 4x100 ET30 Silver with Polished Lip
    Excl. VAT: £137.50 Incl. VAT: £165.00
    A hugely popular wheel for the following vehicles: Honda Civic Mazda MX5 Mitsubishi Colt Seat Arosa Seat Ibiza (4 stud) Suzuki Swift Toyota Starlet Toyota Yaris Vauxhall Corsa (4 stud) Volkswagen Lupo Volkswagen Golf Mk1 / Mk2 Volkswagen Polo (4 stud) Lower offset wheels may require some arch work to avoid the tyres rubbing. Learn More
  10. 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

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