The rigidity of the inside shoulder was tuned with fine grooves in a circumferential direction, for a smoother ride and greater comfort. A blind groove was adopted for the wide rib on the outside shoulder, increasing rigidity.
1. Layered Rubber for higher fuel economy
The two-layered treat compound, with a bottom rubber layer designed for higher fuel economy, delivers high efficiency without adversely affecting the tread´s grip performance.
2. Belt Cover
The belt cover firmly holds the tread portion, which must withstand the constant impact with the road surface, to maintain rigidity and maximize straight-line stability.
3. Turn-up Carcass Construction
The tyre´s construction - with the carcass tightly wound up to the shoulder to create a two-layered sidewall - achieves both light weight and high rigidity.
4. Bead Fillers
Bead fillers maintain sidewall stiffness. Different types of rubber were developed, component by component, with the goal of improving overall performance.