Whether your adventure of choice includes rolling miles of gravel farm roads, hard packed singletrack, dusty desert fire roads, or just a random mix of terrain, the WTB Nano TCS Light FR Clincher Tire has it covered. Although it's billed as a cyclocross tire, the 40mm width limits its utility for racing and we think this tire really shines while exploring the wild on off road terrain. With a tread pattern that looks a bit like a miniaturized version of a hard gripping trail tire, this tire provides sure grip on loose surfaces while its Dual DNA compound makes for a smooth, durable ride. What makes the Nano the legend it is comes down to that innovative tread pattern. One glance and you can see that it's unlike anything else. The center is made from a fast rolling 60 durometer compound with a slightly elevated rib to maintain virtually constant contact with the ground, which makes keeping speed over hardpack or even pavement a breeze. Move toward the shoulders, however, and you'll find a softer, grippy, 50 durometer compound with pronounced, staggered rectangular knobs that bite hard into looser terrain to enable controlled cornering and responsive braking. The high volume casing and relatively square profile equate to a smooth yet efficient ride.