Berlin Tires Summer UHP 1 G2 is a summer tyre made in total of 0 sizes, ranging from R13 to R13 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 315/40 R21 is 315mm wider than the narrowest dimension () and -315mm narrower than the widest one (). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (315mm), which results in 126mm sidewall height. In 315/40 R21, Tires Summer UHP 1 G2 usually competes against , which is a tyre from with a rating of %, compared to 0% of the Berlin in question.