Tyre Size 18'' Wheels

[addison]

hi guys

What is the best tyre size for 18'' wheels

on a 2.5 WRX 06

are they 100 pcd

Thanks

[dano17439]

  addison said:

hi guys

What is the best tyre size for 18'' wheels

on a 2.5 WRX 06

are they 100 pcd

Thanks

If the wheel is 18 x 7.5 then 225/40/18

If the wheel is 18 x 8 then go for 235/35/18

[thewelsho]

  dano17439 said:

If the wheel is 18 x 7.5 then 225/40/18

If the wheel is 18 x 8 then go for 235/35/18

What do the values 7.5 and 8 refer to?

[thewelsho]

  addison said:

hi guys

What is the best tyre size for 18'' wheels

on a 2.5 WRX 06

are they 100 pcd

Thanks

PCD is not a factor in tyre sizes. If you imagine a circle, where the circumference of the circle passes through the centre of the studs and then measure the diameter of said circle; this gives you the PCD of your wheels. In STi models from 05 onwards, this was extended to 114.3mm to make a stronger attachment of the wheel to the hub.

[addison]

  TheWelsho said:

PCD is not a factor in tyre sizes. If you imagine a circle, where the circumference of the circle passes through the centre of the studs and then measure the diameter of said circle; this gives you the PCD of your wheels. In STi models from 05 onwards, this was extended to 114.3mm to make a stronger attachment of the wheel to the hub.

thanks i did know what PCD ment but was not sure if the 06 WRX was 100 or 114.3

7.5'' or 8'' is it not the width of the wheel

[ally-b]

Yep