Riken Stud2 195/55 R15

Riken Stud2 is a tyre made in total of 16 sizes, ranging from R15 to R15 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 195/55 R15 is 10mm wider than the narrowest dimension (185) and 30mm narrower than the widest one (225). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (195mm), which results in 107.25mm sidewall height.