A tire, preferably a racing tire, is disclosed. The tire comprises a tread, the tread comprising a first layer (14) formed of a first rubber composition, the first layer defining a first portion of a road-contacting surface of the tread; and a second layer (16) formed of a second rubber composition, the second layer defining a second portion of the road-contacting surface of the tread and being partially covered by the first layer. The first rubber composition comprises 70 to 92 parts per hundred parts by weight of rubber (phr) of a solution-polymerized styrene butadiene rubber and at least one of an isoprene rubber and a poly butadiene rubber, and 50 to 160 phr of silica. The second rubber composition comprises 70 to 100 phr of a polyisoprene rubber, 5 to 30 phr of silica, and carbon black. The second rubber composition comprises carbon black at a higher phr than the first rubber composition. The first rubber composition comprises a resin at a higher phr than the second rubber composition.
DUAL LAYER TIRE TREAD
ZWEISCHICHTIGE REIFENLAUFFLÄCHE
BANDE DE ROULEMENT DE PNEUMATIQUE À DOUBLE COUCHE
2025-03-26
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |