The Bridgestone Turanza ER300 RFT tire has a fuel efficient tread pattern and is a touring summer run-flat tire which comes OE on Mercedes Benz and other coupes and sedans. It has an asymmetric tread design and super grippy summer tread compound. It is not designed to be driven in snow, ice or near freezing temperatures, but it is ideal for year-round use in the southern states, or in the northern states and Canada by those that either don't use the vehicle in the winter, or change out for winter tires. This tire is designed for sporty handling and long tread-life, while providing extended mobility for a short time in the event that a puncture causes complete air pressure loss.
This tire has Bridgestone Tire Side Support Run-Flat technology. As such, it has a reinforced sidewall design that supports the weight of the vehicle even with loss of air pressure. The thicker sidewalls are made of heat resistant rubber and provide zero pressure mobility for up to 50 miles, so you can get yourself to a garage or safe location to replace the damaged tire. Remember to always replace runflat original equipment tires on your Mercedes or other runflat equipped car with runflat tires, and ensure your tire pressure monitor system, valve and valve stems are serviced correctly by your tire installer.
Please call Tires-easy customer service if you have any questions about runflat tires, or the Bridgestone Turanza ER300 RFT tire specifically.