Originally Posted by jimojameso

Hello everyone.

Picked up my 2007 slk 280 on monday and already got some beautiful 18" wheels on. Looks great. Thanks for everyones help with that. Will get some pics up asap!

I have 18 inch wheels with with 225/40/18 and 255/35/18. There fullrun tyres and i set them at 34 - 36 psi to start with. All was good until i went out in a very heavy downpour and the back end kept slidin not even going at high speed. According to their website they recommend 42 psi. That sounds a bit high to me. What pressures would you recommend?? All the wheels are 8.5" if that helps. Look forward to a response. Thanks for your help.

James