My rims currently have 235/40/18 tires on them. I notice they are not lasting too long and want a bigger tire that might last longer. Would i be able to go to 225/60/18? What kind of issues might i expect?
When considering changing wheel and tyre sizes, it is necessary to maintain a diameter that is as close as possible to the original so that the gearing of the drive train is not adversely impacted. Doing so will also ensure that the ride height will not change significantly. The new tyre will have a 12.71% (15mm) increase in overall diameter It is recommended to only change by a max of 2.5%
Tire size is not what causes a tire wear quickly, it's the tire quality and performance type. Additionally, if 235/40-18 is your OE tire size then 225/60-18 is no where close to an acceptable alternative. Both too narrow and too tall. Any alternative sizes would be purely based on the specific year, make and model of automobile. Bottom line, stick with your OE size if you wish your automobile to handle and control as engineered. Simply upgrade the quality of tire you are using.