Tyre size advice

[Matty_GTS]

Evening all,

I currently have 245/35/17 Toyo T1R's on my 9j rear Enkie RC5 rims. The tyres are way past their sell by date and need replacing. Problem is, I am struggling to find anything decent in this size. I just fitted Michelin Pilot sport 4's up front and they are great but they don't come in the right size, just 245/40/17.

Other options are the 235/40/17 but there is far less choice in this size and not a PS4.

What would be the best option? The 245/40 would maintain the width and rubber on road but might look 'bulky' as my new fronts do... would the 235/40 stretch to reduce the hight? Does it work like that?

Thanks

[Matty_GTS]

Having been doing some reading I think the 235 / 40 is out of the question for a 9 inch rim. The 245 / 40 is probably ideal however many people go with a 255 / 40 on a 9j! Who has experience with this size on standard shocks but lowered? Do they rub on the arches?

[shinny]

Having been doing some reading I think the 235 / 40 is out of the question for a 9 inch rim.

Why? It's within the generally accepted tyre width range for that wheel size and results in only a little stretch. (I know this as I'm running exactly that combo on my NA).

I can understand preferring a 245 (the 35 profile is the ideal match to the stock rolling radius, but it's got a VERY limited selection of tyres) or wider though.