Bridgestone Potenza Sport is a summer tyre made in total of 134 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/30 R20 is 50mm wider than the narrowest dimension (205) and 30mm narrower than the widest one (285). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (255mm), which results in 76.5mm sidewall height. In 255/30 R20, there is only one possible speed index for Bridgestone Potenza Sport - "Y", which is good for speeds up to 300 km/h. In 255/30 R20, Potenza Sport usually competes against Turanza T005, which is a tyre from Bridgestone with a rating of 91%, compared to 91% of the Bridgestone in question.
Relevant tyre tests in same or similiar dimension (255/30 R20)
Automotorsport Summer tyre test 2023 255/45 R20 very good Ranked #5 of 10Securing the 5th place out of 10 competitors, the Bridgestone Potenza Sport made a notable impression with its performance, earning a "Very good" final rating. This tire was celebrated for its exceptional cornering grip on both wet and dry surfaces, alongside precise handling characteristics that underscore its sporty nature. However, it didn't escape criticism; longer braking distances on wet surfaces were noted, and it was found to be sensitive to temperature variations. Additionally, its higher rolling resistance and the louder noise level during drive-by were points of concern, along with a somewhat rough ride. Despite these drawbacks, the tire excelled in several key disciplines, standing out as the best in aquaplaning - cross, dry handling, dry lane changing, dry steering response, wet handling, objective wet handling, and wet side guide, showcasing its strong performance across a diverse range of conditions.