I currently have 225/45-17 summer tyres fitted. Am planning to purchase 205/55-16 winter tyres, fitted to steel rims. However, the steel wheel supplier is offering a choice of 6.0 or 6.5 rim width. Which one of these would be the best choice? I believe most normal winter tyres will have the flexibility to fit both, but which width should I go for? Is one better that the other? Thanks in advance.