Tyres come in a huge variety of different sizes and types and are an important vehicle component performing a demanding job in how your EV drives and performs.
Fitment of the correct size and type of tyre is critical; fitting the wrong tyre could have potentially dangerous, damaging (and potentially legal) implications; even fitting a slightly different tyre tread pattern can affect how the vehicle performs and in some cases potentially cause problems with the vehicle drivetrain and associated systems.
To make sure that you select the correct tyre you'll need to make sure that you know the exact details of the tyre size and type fitted to your EV.
For this you'll need to physically check the tyres on your vehicle; it's not unusual for vehicles of different specifications or model years to have a different tyre fitted. Remember to check both front and rear tyres too as some vehicles have different sizes tyres front and rear.
Tyre details - refer to the detail above for the tyre size and type details, you'll also need to make a note of the manufacturer and tread pattern.
Tyre size and type sidewall markings:
1. Tyre section width in mm
2. Aspect ratio – Sidewall height to section width relation in %
3. Tyre construction (R = Radial)
4. Rim diameter in inches
5. XL – denotes “Extra Load” capability and a higher Load Index
6. Load Index (Maximum tyre load capacity)
7. Speed Rating symbol
"OE" Original Equipment markings - please see section below for detail on OE Markings.
Some vehicles come equiped with "Original Equipment - OE" marked tyres; these tyres may have been specially adapted to deliver some key characteristics as required by the vehicle manufacturer's specification. These adaptations may be slight or subtle and may not be immediately obvious compared to a non-OE marked tyre. Some examples of these markings are listed below; they can be often be found on the sidewall of the tyre near to the size or tread pattern markings.
AO, AO1, AO2 etc. - Audi Original: Tyre construction approved by AUDI
AOE - Audi Original Extended: Tyre construction approved by AUDI with runflat technology
RO1, RO2 etc. - Tyre construction approved for AUDI QUATTRO
* (Star Symbol) - BMW: Tyre construction approved by BMW / MINI (without runflat technology)
* RSC - BMW,Runflat System Component: Tyre construction approved by BMW / MINI with runflat technology
J - Jaguar: tyre construction approved by Jaguar
LR - LandRover: tyre construction approved by LandRover
MO - Mercedes Original: tyre construction approved by Mercedes-Benz (without runflat technology)
MOE - Mercedes Original Extended: tyre construction approved by Mercedes-Benz with runflat technology
MOS - Mercedes Original Schaum: tyre construction approved by Mercedes-Benz (with Foam application)
N0, N1 ,NA0, NB0, NF0, NFX0, N0 TV, NE0 etc. - Porsche: tyre construction approved by Porsche
NR1 - Nissan Nismo: tyre construction approved by Nissan for Nissan Nismo
T0, T1, T2, etc - Tesla Original; tyre construction approved by Tesla
VOL - Volvo: tyre construction approved by Volvo
(+) - VW Circled + : tyre construction approved by Volkswagen for VW Neo