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Caterham 21 Tire Sizes in Simple-to-Read Graphs

Tire width for different generations

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Quick notes on Caterham 21 tires

    • Min-max tire width: 205 mm
    • Min-max wheel diameter: R16
    • Min-max sidewall height: 92 mm
    • Tire width difference from average: +2.9%
    • Average wheel height: 591 mm
    • Tire width per 1 hp: 1.3 mm / 1 hp
    • Weight per 1 mm of tire width: 3 kg / 1 mm
    • Load to 1 tire: 163 kg / 358 lbs
    • Power to 1 tire: 39 hp / 29 kW
    • Tiremain rating: 6 / 10

Tire width to car width ratio

  • Average tire width: 205 mm;
    Car body width: 1580 mm;
    Car width to tyre width: 13%;

    • Whole wheel height (in. and mm)

  • Disc height: 406 mm;
    Tire height: 92 mm;
    Wheel height: 591 mm;

    Tire width to power ratio

  • 1.6 i 16V — 1.5 mm per 1 hp (2.1 mm/kW)
  • 1.8 i 16V — 1.1 mm per 1 hp (1.5 mm/kW)
  • 1.8 i 16V Supersport — 1.5 mm per 1 hp (2 mm/kW)
  • 1.8 i 16V U347WC — 1.3 mm per 1 hp (1.8 mm/kW)

    Vehicle Tire width / profile height Whole tire height Engine сс to 1 tire Tire circumference Summary tire width
    1.6 i 16V 205 / 92 mm 591 mm
    (23.3 in)     		397 cc (0.4 L) 1857 mm
    (73.1 in)     		820 mm
    (32.3 in)
    1.8 i 16V 205 / 92 mm 591 mm
    (23.3 in)     		449 cc (0.45 L) 1857 mm
    (73.1 in)     		820 mm
    (32.3 in)
    1.8 i 16V Supersport 205 / 92 mm 591 mm
    (23.3 in)     		449 cc (0.45 L) 1857 mm
    (73.1 in)     		820 mm
    (32.3 in)
    1.8 i 16V U347WC 205 / 92 mm 591 mm
    (23.3 in)     		449 cc (0.45 L) 1857 mm
    (73.1 in)     		820 mm
    (32.3 in)
    Vehicle 1.6 i 16V
    Tire width / profile height 205 / 92 mm
    Whole tire height 591 mm (23.3 in)
    Engine сс to 1 tire 397 cc (0.4 L)
    Tire circumferencee 1857 mm (73.1 in)
    Summary tire width 820 mm (32.3 in)
    Vehicle 1.8 i 16V
    Tire width / profile height 205 / 92 mm
    Whole tire height 591 mm (23.3 in)
    Engine сс to 1 tire 449 cc (0.45 L)
    Tire circumferencee 1857 mm (73.1 in)
    Summary tire width 820 mm (32.3 in)
    Vehicle 1.8 i 16V Supersport
    Tire width / profile height 205 / 92 mm
    Whole tire height 591 mm (23.3 in)
    Engine сс to 1 tire 449 cc (0.45 L)
    Tire circumferencee 1857 mm (73.1 in)
    Summary tire width 820 mm (32.3 in)
    Vehicle 1.8 i 16V U347WC
    Tire width / profile height 205 / 92 mm
    Whole tire height 591 mm (23.3 in)
    Engine сс to 1 tire 449 cc (0.45 L)
    Tire circumferencee 1857 mm (73.1 in)
    Summary tire width 820 mm (32.3 in)

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