Bicycle tires. Application area: Mountain bike. Tire type: Folding tire. Tubeless Ready: Yes. The Porcupine is the ideal all-rounder that performs well in any situation, regardless of the conditions. It offers a wide range of applications, from touring to all mountain. The aggressive shape of the side lugs combined with a soft rubber provides ample traction in every situation. Due to its center knobs and ramp-like shape, the Porcupine rolls particularly smoothly. Trail Casing. The TRC casing is the perfect compromise between low weight and puncture protection. It is the perfect choice for a wide range of applications from trail to all mountain, making it optimal for most bikes and riding styles. Ideal all-round casing and wide application range from trail to all mountain.