|Gee....Is that a track from a mountain bike tire?|
The tubeless nature of these tires is really good. They set up so easily it was ridiculous, and they have really good air retention without being overly heavy and/or stiff in the casing. The casing was actually pretty flexible, I thought, and the ride feel shows it. In fact, over rough pavement and whoop-de-doos on chip seal, the tires almost make the bike feel like it has a bit of suspension. On the gravel, it is more of a mixed bag.
Maybe I need to change the pressures a little bit more. I found that with bigger volume tires, like the Fat Fargo has, the air pressure is critical. My 1x1 Surly, with the tubeless 2.5"er Extraterrestrials, has to be within about 5psi of optimal or it makes the bike feel awful. I think these Horizon tires will be similar, since I am finding really noticeable differences by adjusting by 3psi or so. By the way, I have never gone above 30psi with these yet. I have tried as low as 25 psi in the front, and it seems that about 27-28psi is a sweet spot for me in the rear. 30 psi rear is about maximum for what I would deem acceptable on gravel. Too much higher and the rounded casing shape would just start cutting in and slipping out on climbs.
Anyway, one area where I was amazed was on Petrie Road. That has turned into some churned up sand/silt and the Horizon tires made short work of that by floating over the stuff like a fat bike would. However; deep, fresh gravel made the tires slip out sideways and they felt kind of like a tire going flat. Weird.