This is the Traxxas S1 Slash Tread Racing Tires (2): Slash & Slash 4x4.
Race-proven, soft-compound rubber improves traction and cornering grip
Realistic Traxxas Short Course tread pattern
Performance tuned foam inserts included
Tested in the heat of ROAR and RC Pro Series competition with the race-winning Traxxas Response Pro monster-truck tire, the same S1 compound is now available in the standard Slash tread pattern for enhanced traction and control on all tracks. The S1 compound delivers precise steering and incredible grip for the new Slash 4X4, and is ideal for improving rear bite on the 2WD Slash. Experience an instant boost in traction and control that will shave seconds from your lap times!