Is there really a difference between using radial or bias ply tires, when considering rolling resistance?
Radial ply construction reduces internal friction which minimizes operating temperature and reduces rolling resistance as compared to bias ply construction. Radial tires can have as much as 30% less rolling resistance than bias tires under normal operating conditions. The low profile design reduces rolling resistance another 10% over standard profile tires and tubeless tires provide a 2 to 3% advantage over tube-type tires.
