Pirelli Winter Sottozero 3 is a winter tyre made in total of 24 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 245/40 R20 is 40mm wider than the narrowest dimension (205) and 30mm narrower than the widest one (275). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height. In 245/40 R20, there is only one possible speed index for Pirelli Winter Sottozero 3 - "V", which is good for speeds up to 240 km/h.
Relevant tyre tests in same or similiar dimension (245/40 R20)

| Name | Stopping distance on wet | Stopping distance on snow | |||||
|---|---|---|---|---|---|---|---|
| Best values in test | 30,3 | 24,3 | |||||
| Pirelli Winter Sottozero 3 | 35,2 | 25,8 | |||||
| Show test details | |||||||

| Name | Wet | Dry | Snow | Running costs | |||
|---|---|---|---|---|---|---|---|
| Best values in test | 2+ | 1- | 2+ | 1- | |||
| Pirelli Winter Sottozero 3 | 3+ | 2 | 2- | 2 | |||
| Show test details | |||||||

| Name | Wet | Dry | Snow | ||||
|---|---|---|---|---|---|---|---|
| Best values in test | 2+ | 2+ | 1 | ||||
| Pirelli Winter Sottozero 3 | 2- | 2+ | 2 | ||||
| Show test details | |||||||

| Name | Wet | Dry | Snow | ||||
|---|---|---|---|---|---|---|---|
| Best values in test | 2 | 2 | 1- | ||||
| Pirelli Winter Sottozero 3 | 2 | 2 | 2 | ||||
| Show test details | |||||||