XL - Extra Load or Reinforced
| size | service desc | req rim | section width (mm) | overall dia (mm) | static loaded radius (mm) | rim range (inch) | |||
|---|---|---|---|---|---|---|---|---|---|
| 175/65R14C | 90/88T | 5.0 | 177 | 584 | 269 | 5.0 - 5.5 | G | B | 71dB |
| 165/70R13C | 88/86R | 5.0 | 170 | 562 | 258 | 4.5 - 5.0 | G | B | 71dB |
| 165/70R14C | 89/87R | 5.0 | 170 | 588 | 271 | 4.5 - 5.0 | G | B | 71dB |
| 165/80R13XL | 87R | 4.5 | 165 | 594 | 271 | 4.0 - 5.5 | G | B | 71dB |
Fuel efficiency is influenced by the tyre’s rolling resistance. Lower rolling resistance means lower fuel consumption and CO2 emissions.
There is a 7.5% loss of fuel economy between the best and worst class (average).
Wet grip is one of the most important performance characteristics in a tyre.
The effect may vary among vehicles and driving conditions, but in the case of full braking, the difference between a G and an A class for a set of four identical tyres could be up to 30% shorter braking distance (e.g. for a typical passenger car driving at 80 km/h speed this could be up to 18m shorter braking distance).
Measured in decibels (dB)