Firestone Roadhawk 295/35 R21

Firestone Roadhawk is a summer tyre made in total of 165 sizes, ranging from R15 to R15 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 295/35 R21 is 130mm wider than the narrowest dimension (165) and 0mm narrower than the widest one (295). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (295mm), which results in 103.25mm sidewall height. In 295/35 R21, Roadhawk usually competes against Dynaxer HP5, which is a tyre from Kleber with a rating of 51%, compared to 52% of the Firestone in question.