Hey all. My graddad has a BA xr6 with the 17s. He lives on rural roads and dosnt like the harsh ride with 36psi and his tyres dosnt like the roads.
I was wondering if he could go a larger diamiter tyre.
It has 235/45/17 I was wondering if he could go a 235/55/17 or something like that.
If not any sugestions for a strong tyre.

bung on some 16" steelys, should soften the ride enough, i dont think you want to be changing the rolling diameter as it will throw out the speedo but then i have also read it gets its reading from a sensor in the wheel anyways so not sure if it can adjust for the different size