Scorpion GM
These are the tyres, in hard and soft versions, for gravel rallies
Pirelli GM is a tyre for gravel roads, developed for historic rally cars. The tread pattern design has been optimized for the specific use in all dry, damp, wet or muddy conditions according to the chosen compound. The strength of Pirelli GM is its great versatility. It has a unique asymmetric tread able to work efficiently in both directional stability and pure traction, ensuring the best performance in every weather condition. The strength success of this tyre lies in its three distinct versions: GM4, GM6 and GM8. The first is the compound developed for dry surfaces, perfect for maintaining high and stable performance on hard abrasive grounds with high temperatures. The GM6 compound is specifically for wet surfaces and low temperatures, assuring traction and lateral grip. The GM8 performance levels are enhanced on mud with low temperatures.
Conditions | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Version | Ø mm D | Section Width mm C | Tread Width mm C | Rolling Circumference | Rim | Wet | Damp | Dry |
165/80R13 | GM6-GM8 | 600 | 170 | 135 | 1871 | 5.5 | 8 | 6 | 4 |
185/70-15 | GM6-GM8 | 640 | 203 | 160 | 2015 | 6.5 | 8 | 8 | 6 |
185/70R13 | M4-GM6-GM8 | 600 | 195 | 160 | 1875 | 6 | 8 | 6 | 4 |
Temperature
Compound | Surface | ||||
---|---|---|---|---|---|
WORKING TEMPERATURE °C | SOFT/SANDY | PACKED | HARD/ROCKY | ||
Super soft | K8 | 20°-60° | 100 | 49 | 0 |
Soft | K6 | 50°-90° | 0 | 100 | 0 |
Soft | KM6 | 20°-60° | 100 | 0 | 0 |
Medium | K4 | 70°-130° | 0 | 51 | 100 |
Pressure info
Compound | Condition | Air temperature (°C) | Pressure (Bar) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
WET | DAMP | DRY | -5 | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 30+ | COLD PS START | HOT PS END | |
Super soft | 100 | 100 | 49 | 100 | 100 | 100 | 100 | 0 | 0 | 0 | 0 | 0 | 1.8 | 2.2-2.4 |
Soft | 0 | 51 | 100 | 0 | 0 | 0 | 100 | 100 | 100 | 100 | 0 | 0 | 1.8 | 2.2-2.4 |
Soft | 100 | 100 | 49 | 0 | 100 | 100 | 100 | 100 | 100 | 0 | 0 | 0 | 2.0 | 2.2-2.4 |
Medium | 0 | 0 | 100 | 0 | 0 | 0 | 0 | 0 | 100 | 100 | 100 | 100 | 1.6 | 2.2-2.4 |