165/80 R15 doesn't belong to the most popular dimensions for winter tyres - there are 0 tyre models available, which can be compared to 155/60 R15, 170/60 R17, 160/60 R14. Let's break down the sizing - 80 is height of the tyre, which is calculated as 80% of the tyre width (165mm), which means the sidewall height has 132 mm. The wheel diameter is R15, which means it fits to a 15 inch/381mm diameter wheel. The total circumference of the tyre is 2026.33 mm, which is very similar to 235/40 R18(2026.96 mm), 235/45 R17(2020.99 mm), 215/50 R17(2031.98 mm), 235/35 R19(2032.92 mm), 215/55 R16(2019.73 mm), 265/35 R18(2019.1 mm), 205/65 R15(2034.18 mm).