255/50 R16 doesn't belong to the most popular dimensions for summer 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 - 50 is height of the tyre, which is calculated as 50% of the tyre width (255mm), which means the sidewall height has 127.5 mm. The wheel diameter is R16, which means it fits to a 16 inch/406.4mm diameter wheel. The total circumference of the tyre is 2077.85 mm, which is very similar to 255/45 R17
(2077.54 mm), 255/40 R18
(2077.22 mm), 255/35 R19
(2076.91 mm), 255/30 R20
(2076.59 mm), 305/25 R20
(2075.02 mm), 215/65 R15
(2075.02 mm), 225/40 R19
(2081.62 mm).
