I have at the moment cookie cutters on with i think porsche 5 stud pcd 130 happy with the front size but would like to change the back at the moment its 235 x 60 x 15 looking to go to 265 would like to know what size wheel i'd be looking for and would you envisage any problems with size change. want to change to shiney wheels

there are tyre size and correct rim width charts on the net, but 8.5 - 10 inches will be fine but wall height has an effect on the rim width range, the lower the profile the narrower the fitment band width.

You could always fit 265 or even 275 tyres to your current (7" presumably) Cookie Cutters.

I didnt realise that 

275/60x15s on Cookie Cutters...

Quote from: Manxdavid on October 07, 2013, 07:20:38 PM
275/60x15s on Cookie Cutters on a Sidewinder...

I found this wheel/tire calculator to be of some help..  At least more fun to play than Angry Birds.

http://www.rimsntires.com/specs.jsp

Jim