I've been a big fan of Kenda's tires for a while now. They offer decent performance and excellent durability at a fair price. The Carlsbads, or K772s, are my particular favorite since I mostly ride in dry and hard conditions. So when I saw the availability of a "sticky" version, I really wanted to see how they rated. I threw a $72.95 100/100-18 rear and a 80/100-21 front on our Long Haul Husaberg FE650e, with both directional tires mounted in the "hard" direction as I like the braking feel much better this way. The rear may have been a little small (Kenda's sizing runs a little smaller than average and a big bike should use at least a 110/100 or 120/100, though I regularly run smaller tires for a different "bite" feel), but its hookup exceeded my expectations. The sticky compound, a softer rubber, got a notable grip and grab when the dirt went from loose to hard-packed, as good as any tire out there, leaning or in a turn. On all other surfaces-loose and sandy, loam or generic normal dirt-it was the typical, average Kenda Carlsbad that I get along with just fine; it does nothing spectacular and nothing funny, just like in its long-lasting regular compound. This rear, however, didn't wear so well. The initial edge of the tire went quickly, in under two hours, or 40 miles, and then the knobs between the center row and the sidewall really took a beating and chunked heavily over the next 100 miles. And performance fell off, especially when accelerating on flowing, midspeed turns. My take on the sticky rear is that for a racer, the added grip advantage might be worth the loss in durability, but for trail riding, I'm sticking to the nonsticky compound out back.