Vredestein Wintrac Pro 285/40 R21

Vredestein Wintrac Pro is a winter tyre made in total of 131 sizes, ranging from R17 to R17 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 285/40 R21 is 90mm wider than the narrowest dimension (195) and 40mm narrower than the widest one (325). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (285mm), which results in 114mm sidewall height. In 285/40 R21, Wintrac Pro usually competes against Blizzak LM-005, which is a tyre from Bridgestone with a rating of 87%, compared to 63% of the Vredestein in question.