Austone SP901 is a winter tyre made in total of 29 sizes, ranging from R14 to R14 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/60 R18 is 70mm wider than the narrowest dimension (155) and 0mm narrower than the widest one (225). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (225mm), which results in 135mm sidewall height. In 225/60 R18, there is only one possible speed index for Austone SP901 - "H", which is good for speeds up to 210 km/h.
Relevant tyre tests in same or similiar dimension (225/60 R18)
Autobild Winter tyre test 2023 225/40 R18 not recommended Ranked #10 of 11The Austone SP901 ranked 10th among 11 competitors, landing just above the bottom position. Despite its affordable price and commendable winter qualities, it was ultimately given a final rating of "Not recommended." The primary criticisms revolved around significant safety concerns while driving on both wet and dry surfaces. Testers pointed out issues including a lack of balanced driving behavior, vague steering response, and dangerously long braking distances on wet roads. One bright spot in its performance was noted in the snow cornering discipline, where the tyre showed its best performance. However, these strengths were overshadowed by the critical flaws in safety and handling, leading to its low ranking and final evaluation.