265/50 R19 doesn't belong to the most popular dimensions for tyres - there are tyre models available, which can be compared to 325/30 R21, 155/60 R15, 155/65 R13. Let's break down the sizing - 50 is height of the tyre, which is calculated as 50% of the tyre width (265mm), which means the sidewall height has 132.5 mm. The wheel diameter is R19, which means it fits to a 19 inch/482.6mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 160/70 R17(2060.26 mm), 245/40 R21(2291.48 mm), 165/80 R13(1866.73 mm), 245/55 R17(2203.2 mm), 175/65 R15(1911.66 mm), 255/35 R18(1997.11 mm), 185/50 R16(1857.94 mm). You can find 265/50 R19 on 6 car models - mainly BMW, Maserati, Porsche, Toyota, Volkswagen.