The Vredestein Ultrac Pro, which is set for launch this spring, is an ultra-ultra-high-performance (UUHP) summer tire designed for a range of high-performance vehicles and supercars, and features a “highly innovative structure and an advanced new tread compound”, Apollo Tyres said.
Compared to previous Vredestein UUHP tires, the tire has been designed with changes in material layout within the tire structure, particularly in the bead and lower sidewall areas near the rim. According to Apollo, the design helps to keep the tire stable at high speeds and during cornering, while also providing a smooth ride over rutted surfaces.
The tire also features a compound in its tread that is crafted through a mixing process using polymers, fillers and performance resins. The integration of this compound, Apollo states, provides optimal wet and dry grip across a range of temperatures.
Components in the bead area have undergone re-engineering, resulting in an 85% increase in resistance to bead deformation. This modification is particularly suited for low-profile high-performance tires.
“This increased stability gives the tyre a higher degree of stiffness in its lower section, greatly limiting lateral distortion during hard cornering,” said Daniele Lorenzetti, chief technology officer at Apollo Tyres. “Crucially, it also reduces the requirement for the sidewall to give the tire much of its lateral stability.”
In the redesigned shoulder area, flexible materials have been employed. This adjustment is designed to improve the tire’s compliance with rough surfaces and to reduce rolling resistance. The balance between tread, sidewalls and bead area, according to Apollo, ensures a consistent footprint shape under various conditions.
Available in sizes from 18 to 24in, the Ultrac Pro has been tailored for various sportscars, supercars, high-performance saloons, hatchbacks and SUVs.
