I mounted these up and went for a short ride, and I'm happy with them. They're heavy, as advertised and expected for a tire of this size. They set up very easily tubeless. They roll quickly. I ran them at about 12 PSI. I think I can go quite a bit lower. The front did have some self steer on pavement at 12 psi, but nothing crazy. Build quality and rubber compound quality appear very high. As one of the few tubeless, minimalist tread pattern tires of this size, it's tough to find fault with the Zig Zag. Great experience shopping with The Bikesmiths, as well. Good communication with customer service.