Continental SportContact 7 is a summer tyre made in total of 97 sizes, ranging from R18 to R18 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 265/40 R21 is 40mm wider than the narrowest dimension (225) and 60mm narrower than the widest one (325). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (265mm), which results in 106mm sidewall height. In 265/40 R21, there is only one possible speed index for Continental SportContact 7 - "Y", which is good for speeds up to 300 km/h.
Relevant tyre tests in same or similiar dimension (265/40 R21)
Autobild Summer tyre test 2024 265/35 R19 exemplary Ranked #1 of 7Securing the top position among seven contenders, the Continental SportContact 7 achieved a resounding victory. Earning a final rating of 'Exemplary', it distinguished itself as a formidable supersport tire that displayed barely any shortcomings. This tire showcased an impressive array of qualities including convincing precision in steering, dynamic handling on both wet and dry surfaces, and an excellent balance. Additionally, it was recognized for its short braking distances and strong aquaplaning resistance. Despite its many strengths, a slight increase in noise level was noted as a minor drawback. Particularly outstanding was its performance in wet conditions, where it led in wet braking, wet circle cornering, and wet handling, underlining its superior capabilities in challenging environments.