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❄️ Michelin Pilot Alpin PA4 345/25R21 101W Performance Winter / Snow Tire 01546
$693.45Deals from $693.45
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Michelin Pilot Sport 4S ZP 345/25ZR21 XL (104Y) Max Performance Summer Tire 09852
$669.99Deals from $669.99
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☀️ Michelin Pilot Sport 4S ZP 345/25ZR21 XL (104Y) Max Performance Summer Tire 39231
$552.30Deals from $552.30
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🌦️ Michelin Pilot Sport All Season 4%2B ZP 345/25ZR21 XL (104Y) Ultra High Performance All-Season Tire 34703
$510.99Deals from $510.99
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Michelin Pilot Sport Cup 2 R ZP 345/25ZR21 XL (104Y) Streetable Track & Competition Tire 33590
$628.23Deals from $628.23
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Michelin Pilot Sport Cup 2 R ZP 345/25ZR21 XL (104Y) Streetable Track & Competition Tire 65724
$605.41Deals from $605.41
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☀️ Vitour Tempesta P1 P-01R 345/25ZR21 XL 104W Extreme Performance Summer Tire 6976158607979
$759.00Deals from $759.00
What Does 345/55R21 Actually Mean?
Let's break it down simply: The 345 means this tire has a tread width of 345 millimeters. The 55 is the aspect ratio, which means the sidewall height is 55% of that width. The "R" stands for Radial construction (the modern standard for safety and durability), and finally, the 21 indicates that this tire perfectly fits a 21-inch wheel.