Dunlop Winter is a winter tyre made in total of 65 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/40 R18 is 40mm wider than the narrowest dimension (185) and 20mm narrower than the widest one (245). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (225mm), which results in 90mm sidewall height. In 225/40 R18, there is only one possible speed index for Dunlop Winter - "V", which is good for speeds up to 240 km/h. In 225/40 R18, Winter usually competes against WinterContact TS 870 P, which is a tyre from Continental with a rating of 93%, compared to 93% of the Dunlop in question. Latest test in 225/40 R18 was held by Autobild in 2025, where Winter received rating "Exemplary" and finished on the 2. place. It was tested on a BMW M135i.
Relevant tyre tests in same or similiar dimension (225/40 R18)

| Name | Wet | Snow | |||||
|---|---|---|---|---|---|---|---|
| Best values in test | 32.6 | 27.1 | |||||
| Dunlop Winter | 33.3 | 27.5 | |||||
| Show test details | |||||||

| Name | Wet | Dry | Snow | Running costs | |||
|---|---|---|---|---|---|---|---|
| Best values in test | 2+ | 2+ | 1– | 1 | |||
| Dunlop Winter | 2 | 2+ | 1– | 2 | |||
| Show test details | |||||||