8.75/9.75J x 18 - What tyre sizes?

[Quest]

Hi guys, 

 

Looking to get some new rubber this side of my next MOT and wanted some advice. I'm currently running RE050's in these sizes:

 

Front:

225 45 18 on XXR 527's in 8.75J

Rear: 

245 45 18 on the same wheel in 9.75J

 

At the moment they just look a little too stretched and I'm thinking about putting some wider tyres on to straighten up the sidewalls. I'm aware of the TCS issue but can't seem to find any definitive answers with my wheel sizes as to what to go for. I was thinking 245/40 front with a 275/35 rear (40's are hard to come by and would look baloony) but that somehow makes the rear tyre smaller so I'm at a loss as to what to do... 

 

I'm most likely going to get some Pilot Sport 4's so need to work around those sizes. 

 

HELP.

 

[Sargara]

I'm running Hankook Evo 2's all around from tyreleader in 275/40/18 255/40/18 and they seem fine.  Thats on a 8.5J / 9.5J staggered setup.

[G1en]

I had mpss 245/40 and 275/40 on my 8.5 & 9.5 staggered wheels, probably best widths for your wheels, the 40 profile on rear did look a little baloony but nothing too severe, what shocked me more was the extra weight of the wheel and tyre. 35 profile on rear like you say is much more standard sizing and will look better but may cause some issues with the TCS. 

So its a compromise im afraid. 

[Ben–350Z]

15 hours ago, Sargara said:

I'm running Hankook Evo 2's all around from tyreleader in 275/40/18 255/40/18 and they seem fine.  Thats on a 8.5J / 9.5J staggered setup.

I have the same sizes - although on 9.5J / 10J - seems absolutely fine.

 

From what I understand, it's changing the difference in overall tyre diameter front to rear that upsets the TCS - so if you dropped both profiles to 35 for a less balloony look, you should be okay. Though that may make your speedo read a little high.