Pirelli GM™ is a tyre for use on gravel roads, developed for historic rally cars.
The tread pattern design has been optimized for the specific use in dry, moist, wet or mud conditions according to the compound chosen. The strength of Pirelli GM™ is in its versatility of use. A unique asymmetric tread able to work both as directional or tractive, ensuring maximum performance in all weather conditions. The secret has three initials: GM4, GM6 and GM8.
The first identifies the compound developed for use on dry, ideal for constant of high performance levels on compact ground or hard abrasive with high temperatures. The GM compound ensure traction and lateral grip to the limit on wet roads at low temperatures . With GM8 performance levels are enhanced on mud at low temperatures.