Michelin PILOT ALPIN 5 SUV is a winter tyre made in total of 114 sizes, ranging from R17 to R17 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 255/45 R21 is 30mm wider than the narrowest dimension (225) and 60mm narrower than the widest one (315). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (255mm), which results in 114.75mm sidewall height. In 255/45 R21, there is only one possible speed index for Michelin PILOT ALPIN 5 SUV - "V", which is good for speeds up to 240 km/h.
255/45 R21 106 V XL
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Michelin Pilot Alpin 5 ( 255/45 R21 106V XL, NE0, SUV )
Relevant tyre tests in same or similiar dimension (255/45 R21)
Automotorsport Winter tyre test 2023 255/45 R20 very good Ranked #3 of 7In a field of seven competitors, the Michelin PILOT ALPIN 5 SUV achieved an impressive third-place finish. It received a final rating of "Very Good," underscoring its high performance during the winter motorsport event. Testers lauded its exceptional traction, cornering, and braking on snow, highlighting these as significant strengths. Additionally, it was noted for its good wet grip and aquaplaning resistance. On dry roads, the tire maintained stability, precision, safety, and comfort, although it faced some acceptable trade-off weaknesses on wet and dry asphalt due to its snow-focused design. Notably, the Michelin PILOT ALPIN 5 SUV excelled in several disciplines, including dry steering response, exterior noise reduction, and various snow-related categories such as braking, cornering, handling, and traction, further affirming its status as a winter tire specialist.