Cooper Discoverer Winter is a winter tyre made in total of 54 sizes, ranging from R16 to R16 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 245/40 R19 is 40mm wider than the narrowest dimension (205) and 50mm narrower than the widest one (295). 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 R19, there is only one possible speed index for Cooper Discoverer Winter - "V", which is good for speeds up to 240 km/h. In 245/40 R19, Discoverer Winter usually competes against Wintrac Pro, which is a tyre from Vredestein with a rating of 62%, compared to 64% of the Cooper in question. Latest test in 245/40 R19 was held by Autobild in 2022, where Discoverer Winter received rating "Satisfactory" and finished on the 7. place. It was tested on a Cupra Formentor.
AutoMotorSport Winter tyre test 2022 245/45 R19 sufficient Ranked #6 of 8The Cooper Discoverer Winter tire secured a 6th place finish among 8 challengers. It was given a final rating of 'Sufficient', reflecting a mixed performance. The tire was commended for its decent braking and traction on snow, in addition to being very quiet and fairly comfortable. However, it also faced criticism for its unexpectedly low lateral grip on snow. Despite respectable traction and braking grip, the tire exhibited understeer risks in wet conditions and less secure handling in dry corners, coupled with a high rolling resistance. The longer braking distances on wet surfaces further contributed to its drawbacks. Notably, the tire excelled in aquaplaning resistance in lateral tests and was also recognized for its low exterior noise, demonstrating strengths in specific areas despite its overall mixed review.