I had previously written about tire selection in a Blog found: HERE. This Blog entry lists the many sizes of tires that are possibilities - especially if you have different wheels or want to try other tire brands. Stock sizes for a Sport package Elise or an Exige are: 195/50R16 front & 225/45R17 rear. A key dimension to use in selection is the Overall Diameter - shown below as ‘Circumference’. Ideally, you will choose a tire size that is as close to the stock dimension as possible.
SIZE SIDEWALL RADIUS DIAMETER CIRCUMFERENCE RIM WIDTH
205/50R15 4" 11.5" 23.10
195/50ZR16 3.8" 11.8" 23.70 74.4" 6-7-7.5"
205/45R16 3.6" 11.6" 23.3 73.1" 6.5-7-7.5"
225/45ZR16 4" 12" 24 74.4" 7-7.5-8.5"
225/50R16 4.4" 12.4" 24.9 78.1" 6-7-8"
245/45R16 4.3" 12.3" 24.7 77.5" 7.5-8-9"
225/45R17 4.4" 12.4" 25 78.1" 7-7.5-8.5"
235/40R17 3.7" 12.2" 24.4 76.7" 8-8.5-9.5"
235/45ZR17 4.2" 12.7" 25.3 79.6" 7.5-8.9"
245/40R17 3.9" 12.4" 24.7 77.6" 8-8.5-9.5"
255/40R17 4" 12.5" 25.1 78.6" 8.5-9-10"
If you want to try different sizes, it is always a good policy to change the front and rear in the same amount or ratio. DImensions provided by manufacturers can vary from company to company. We don’t recommend mixing tire models or brands from front to rear.
Our favorite sizes are stock or 205/50R15 front and 245/45R16 rear.
stock tire sizes here with slightly wider wheels: 16x7” and 17x8”
