Thread: Have you done Fraser on 19s?

Hey Vesko, Caine said no photos...

I've found it's all about the tyre pressures. We have 18s on our hse and 1st time with about 20+ psi I got well & truly bogged to the belly in the soft beach exit on north straddie (converging deep ruts) last time I was down near 12 & it was like a hovercraft - floated over all the really chopped up soft stuff like a dream - you just have to be a lot more careful to drive smoothly at those pressures to avoid accidentally rolling the tyre off rim (but I hear the LR rims have a good bead lock) - oh we are on conti cross contact uhp (basically road tyres) I would even go as far to say that I could have stopped in the soft stuff & get going again without issue.

Hi mikhzz
Be kind enough to explain why 18inches is an inch less than 17.
Or am I missing something
Roger

Originally Posted by spitzstick

Hi mikhzz
Be kind enough to explain why 18inches is an inch less than 17.
Or am I missing something
Roger

I said you have an inch less rubber mainly because you have an inch more rim.
The outside diameter of the tyre is the same for all fl2's. If the rim is 18" then the height of the sidewall will be 1/2" shorter on the tyre than it is for a car with 17" rims. 1/2" at the top and 1/2" at the bottom means you have an inch less rubber. On 19" rims you have 2" less rubber sidewall than a 17" rim car. The standard sizes for fl2 are 235/65/17, 235/60/18 and 235/55/19 They all have roughly the same rolling diameter.

Hi mikehzz
I have just looked at 'tyre conversion calculator' on google and it tells me that 235/60/18 are 739.2mm dia. and 235/60/19 are 764.6mm dia.Thats over an inch bigger in my book??
Roger

The 19's are 235/55/19

All the rolling diameters are within a few millimetres of each other so the speedo and trip computer are consistent no matter what rims are put on.

Okay, I know its been a long time "between drinks", but with 19 inches? No thanks!

-Fraser