First off, these are the widest rims I've been able to find, apart from full-on MTB hoops.
I'm an eager bandwaggonner on the wide-tires-are-faster trend, so I've been looking for affordable 28mm+ wide rims for a while.
Zipps are deeper and lighter, but also cost more than 2x these and have narrower inner AND outer rim widths. Similar for ENVEs.
Hunt wheels have a gravel wheelset that's similar to this, but a bit narrower, shallower, and more expensive, albeit a bit lighter.
My plan is to use these for some collegiate road racing and cyclocross in the near future, and probably more bikepacking and gravel grinding later on. I'm confident these wheels will be awesome for just about anything.
Some other bits of info not on this page:
1. Seems like 26 point engagement in the freehub, has a good sound. XD driver (for 10-42t cassette) upgrade is about $60 on Mercury site, looks easy to swap.
2. Wheels come with 12mm, 15mm, and 9mmQR axle adaptors for front, and don't need more than a strong grip to swap. Super easy.
3. decals had some bubbles on the glossy top layer, so I took it off. Left a bit of residue, but once that's gone, bam, you have matte decals.
4. Comes with tubeless tape, but you have to install it yourself.
5. The rim well is pretty deep, tire mounting isn't bad at all (with 28mm GP4000SIIs, which I've been told are tough).
6. Non-hooked beads, which don't really affect anything, but it makes them a bit lighter apparently