Gripmax SureGrip Pro Winter 265/45 R21

Gripmax SureGrip Pro Winter is a winter tyre made in total of 35 sizes, ranging from R17 to R17 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 265/45 R21 is 90mm wider than the narrowest dimension (175) and 70mm narrower than the widest one (335). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (265mm), which results in 119.25mm sidewall height.