Generally, you should not increase the offset more than 1/2 inch (12mm) or tire width by 1 inch (25mm), or you'll create further problems. Increasing offset 1/2 inch (12mm) or tire width 1 inch (25mm) will put the entire extra tire width 1/2 inch (12mm) to the outside, where it may not clear the wheel well. Increasing the offset also has the effect of loading the front wheel bearings past their design limits and can actually "****" the bearings causing rapid wear or premature failure.