160/70 R17 doesn't belong to the most popular dimensions for summer tyres - there are 8 tyre models available, which can be compared to 195/40 R17, 215/35 R18, 205/40 R17. Let's break down the sizing - 70 is height of the tyre, which is calculated as 70% of the tyre width (160mm), which means the sidewall height has 112 mm. The wheel diameter is R17, which means it fits to a 17 inch/431.8mm diameter wheel. The total circumference of the tyre is 2060.26 mm, which is very similar to 295/25 R20(2059.31 mm), 245/30 R20(2057.74 mm), 285/35 R18(2063.08 mm), 225/50 R17(2063.4 mm), 205/55 R17(2064.97 mm), 245/35 R19(2054.92 mm), 195/70 R15(2054.6 mm). There are multiple speed indexes available for summer tyres in 160/70 R17: H(210km/h), V(240km/h), W(270km/h). The same goes for weight indexes: 73, 79.