[Alfalasy]

My wheel spec is 18x9.5 +40mm offset for all wheels. Rays Gramlights 57Xtreme. Tires 255/35-18 Pirelli P Zero.

I have done some research but didn't find an answer for the best setup for track days and need some advice to choose the most suitable width for front and rear. I'm also planning to get semi-slick tires.

If I go for narrower front at 235 is it going to be more nimble and reduce roll resistance? For the rear I'm planing to keep the 255 width for more grip.

Need advice on this please.