Pirelli dabbles in dirt P irelli is not a brand known for off-road tires. People turn to Pirelli for carving city streets, not sand dunes and washed-out river beds. The company’s new Scorpion ...

I knew I was pushing the limits on those skinny tires designed for the streets, and halfway through the sand patch, my tires lost grip. I lost balance, and my bike started to skid. I was headed ...