The name "Nevegal" comes from a famous UCI downhill course in Northern Italy. The course has loose rocks, tall grass, limestone, muddy roots, running water, and single track. John Tomac designed a tire to work in those loose-type conditions. The tread has tapered, ramped knobs with multiple edges and tie bars connecting alternating transition knobs with cornering edge knobs. The Kenda DTC designation means Dual Tread Compound meaning different types of rubber used for added durability and improved handling manners. The center tread is firm for fast rolling and longer wear time, while the outer tread is softer for better traction and handleing in corners.
All that being said, the Nevegal offers superior grip and adhesion to almost any type of terrain. What really makes this tire special is the fact that not only does it have unbelievable traction, but it rolls very quick and doesn't feel sluggish - an issue with many aggressive tires. The tire can be used for front and rear and is also considered by many as the ultimate front tire.
Been using this tire for well over a year, the 2.35. It is the best tire Ive found for extreme or widely varying conditions. It is very forgiving on ruts, loose rock, roots, and mud. It climbs tenaciously. The downside is that it is a bit heavy and higher rolling resistance, but to me it more than compensates by keeping you rolling in difficult terrain. Ive found nothing that compares on very steep, loose climbs and descents. Wears very well, too.