The Bridgestone Alenza Sport A/S RFT is a run-flat all-season light truck and crossover/SUV tire made for drivers who want low-profile style tire options to enhance vehicle appearance while providing all-season capability. The Alenza Sport A/S comes as original equipment on some models of crossover and SUV vehicles and is meant to be driven for a short period when a puncture occurs to help the driver make it to a repair facility.