External layer
Higher mileage
Excellent roadholding
Reduced braking distance

Internal layer
Low heat generation
Reduce rolling resistance
Structural integrity

Wider belts for increased structural integrity and avenness of wear
A thicker strip between the load-bearing belts enhances endurance and strength
The first belt is the widest, so easing stress at the extremities and increasing structural integrity and retreadability

Cord is more resistant to oxidation
HEP. New generation steel cord gives improved resistance to impacts

Greater flexibility and easy of fitting
Thermal stability of bead and longer lasting bead wire
Retreadability