I've used this for about 200 miles of dirt riding as a front tire on a WTB i29 rim. It's one of the few 2.6 tires that's actually 2.6 it's extremely soft and I've been running it about 18 to 20 psi it has a very round shape to. For reference I'm 185lbs. It really smoothes out the bumps I can't believe the difference between this tire and a 2.4 Continental X King. The rubber on the tire tread and side walls is way softer than anything I've ever written. Tried to sneak one on the back of a 29er Foundry Firetower hardtail but it wouldn't fit. It's seated pretty easy after I tighten the lock washer on the valve stem. It is heavy a little over a thousand grams but I knew that when I bought it. I bought the Newton 2.4 downhill Tire to go on the back hoping it's like this one.