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2018 Buick Regal Sportback Tire Sizes
Best Tires for Buick Regal Sportback
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Bridgestone Driveguard
Stock Tire Sizes
P 225/55 R17
Diameter 26.74" | Sidewall height 4.87"
P 235/45 R18
Diameter 26.33" | Sidewall height 4.16"
P 245/45 R18
Diameter 26.68" | Sidewall height 4.34"
P 245/40 R19
Diameter 26.72" | Sidewall height 3.86"
P 245/35 R20
Diameter 26.75" | Sidewall height 3.38"