High performance tyre

The tyre design with oppositely positioned grooves in the tread band addresses the issue of localized wear and early decay by ensuring controlled stiffness variations and progressive yielding, maintaining high performance on tracks.

WO2026126013A1 Publication Date: 2026-06-18PIRELLI TYRE SPA
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
PIRELLI TYRE SPA
Filing Date
2025-12-03
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

High performance tyres for cars and racing cars face issues with localized wear and early performance decay due to grooves with limited extension in the circumferential and/or transverse direction, which cause abrupt stiffness variations, particularly in the axial direction, when used on tracks.

⚗Method used

A tyre design with a tread band having a low void-to-rubber ratio and pairs of longitudinally arranged grooves oppositely positioned relative to the equatorial plane, ensuring controlled stiffness variations and progressive yielding, without compromising performance.

🎯Benefits of technology

The tyre achieves high performance levels on tracks while minimizing localized wear and preventing early performance decay by distributing grooves with non-negligible size for controlled stress management.

✦ Generated by Eureka AI based on patent content.

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Abstract

A tyre (100) for high performance or ultra high performance cars and racing cars is described, which is particularly suitable for use on track. The tyre (100) has a tread band (1) extending across an equatorial plane of the tyre (X-X) and having a void-to-rubber ratio equal to or smaller than 0.06; said tread band (1) comprises a pair (M) of longitudinal grooves (4) repeated along the circumferential development of the tyre, the longitudinal grooves (4) of each pair being located oppositely relative to the equatorial plane (X-X); said longitudinal grooves (4) of each pair having substantially the same shape and dimensions; said longitudinal grooves (4) having a plan surface area, measured on the radially outer surface of the tyre, greater than or equal to 350 mm2.
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