Panaracer really got it right with this design. A favorite and go-to choice for many riders, the XC Pro has well-designed square knobs of the which deliver excellent traction and cornering in just about any terrain. Silca compound added to the treads improves tread life as well as increases durability and grip. A narrow BAX cord woven into the casing at a high density provides lightness and flexibility with a resistance to cuts and abrasions. We have found the Panaracer XC Pro tire a great all-around aggressive tire with a bonus of longer tread life compared with similar tires.