Bridgestone Alenza Sport AS RFT Tires
The Bridgestone Alenza Sport AS RFT is the run-flat version of the Alenza Sport A/S, a performance all-season tire for luxury SUVs. It is made for vehicles that come from the factory on run-flat tires and carry no spare.
Run-flat is the reason this tire exists. Reinforced sidewalls support the weight of the vehicle even when the tire loses all its air, so you can keep driving to a service location instead of changing a tire on the shoulder. Bridgestone rates its run-flat technology for about 50 miles at up to 50 mph with zero pressure. Because the tire keeps its shape when flat, it pairs with the vehicle's tire pressure monitoring system.
Above the casing, the tread is asymmetric. Four wide circumferential grooves move water and slush out of the footprint to resist hydroplaning, and the all-season compound and siping add grip in wet and light winter conditions. Sizes are H-rated (130 mph), and the 285/45R20 size is XL, meaning the casing carries more weight at higher pressure.
Best-suited for: Luxury SUVs that came from the factory on run-flat tires in these sizes, including BMW and Mercedes-Benz models. Match the size and load index on your door-jamb placard.
Tire Best Features:
- Run-flat construction supports the vehicle after a puncture, so you can drive to service.
- Reinforced sidewalls keep the tire on the rim with zero pressure.
- An asymmetric tread for SUV handling stability.
- Four wide circumferential grooves resist hydroplaning.
- An all-season compound for wet and light winter grip.
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