305/35 R21 doesn't belong to the most popular dimensions for summer tyres - there are 1 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 (305mm), which means the sidewall height has 106.75 mm. The wheel diameter is R21, which means it fits to a 21 inch/533.4mm diameter wheel. The total circumference of the tyre is 2346.46 mm, which is very similar to 265/45 R20
(2345.2 mm), 265/50 R19
(2348.65 mm), 315/30 R22
(2349.28 mm), 265/40 R21
(2341.74 mm), 245/70 R16
(2354.31 mm), 265/35 R22
(2338.29 mm), 295/40 R20
(2337.34 mm). There are multiple speed indexes available for summer tyres in 305/35 R21: Y
(300km/h). The same goes for weight indexes: 109.
Premium
'26#1
'26#1
'26#2
Premium
'25#3
'25#5
