Dunlop Sportmax Roadsmart IV 160/70 R17

Dunlop Sportmax Roadsmart IV is a allround tyre made in total of 10 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 160/70 R17 is 20mm wider than the narrowest dimension (140) and 10mm narrower than the widest one (170). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (160mm), which results in 112mm sidewall height.