Scorpion™ XC Mid Hard. The tread pattern is designed to maximum traction, even during changing terrain conditions, to provide maximum speed and control. Based on the MT18 Series front and rear (HD) tires. Wide spacing between central knobs provide maximum traction on intermediate terrain. Different dimples provide adaptability to terrain for improved grip during braking and cornering. Sharp edged knobs provide grip on hard terrain and maximum traction on intermediate terrain.