295/35 R20 doesn't belong to the most popular dimensions for allround 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 - 35 is height of the tyre, which is calculated as 35% of the tyre width (295mm), which means the sidewall height has 103.25 mm. The wheel diameter is R20, which means it fits to a 20 inch/508mm diameter wheel. The total circumference of the tyre is 2244.67 mm, which is very similar to 205/75 R16(2242.78 mm), 235/60 R17(2242.47 mm), 235/55 R18(2248.44 mm), 255/45 R19(2237.13 mm), 255/40 R20(2236.81 mm), 235/65 R16(2236.5 mm), 235/50 R19(2254.41 mm). There are multiple speed indexes available for allround tyres in 295/35 R20: V(240km/h). The same goes for weight indexes: 105.