They are on my Ti road bike and replaced some 6-year old Velocity A23 pro wheels that cracked at several spoke holes on the rear wheel. I wasn't interested in deep carbon wheels but wanted something light weight. They are great but with one small problem. The rim strip on the front wheel had a little sharp point at the valve hole. This lead to several punctures at the base of the valve stem. Once I diagnosed the problem, I put some electrical tape over the area which seems to have solved the problem. In retrospect, I should have used a soldering iron to melt the offending sharp point.
Bought this wheelset for gravel tubeless set up including DK200 which I've done 3 times now. These are supposed to be tough unbreakable per Enve - and while I haven't had wheel issues on gravel yet, getting something wider and lighter than my current set with the potential for lower risk of pinch flats is attractive. DK200 is tough enough without flats! These weighed in at 1296 grams on my scale without rim tape or valve stem installed (which Enve provides with the wheels) so under the advertised weight. I haven't had the chance to ride them on gravel, only with 38mm slicks on pavement so far, but look forward to trying them out - for now all I can say for performance is they spin up easy, perfectly true, and no noticeable flex. I did convert these to QR wheels with different end caps from DT Swiss (easy to do). I have no doubt they will live up to the Enve claims for durability when I do get them off road.
Unfortunately I recently wrecked my WH-9000 C24s in a crash, but no doubt they were the best wheels I've ever owned - and I've had some good ones! Dependable, stable, fast and light... with an alloy rim surface for superior braking, I WILL own another set some day!
I recently purchased these and even though they came with 40mm Yksion Allroad tires installed I wanted to test out Mavic's UST tubeless. I removed one tire completely and reinstalled it. Seated within seconds using a simple floor pump. As soon as pressure got near 20 psi the tire popped into the beads. Easy as that. I deflated, added sealant, reinflated and it held air perfectly. Hubs are smooth, build quality seems strong, and although not the lightest wheels out there I dropped a full pound and a half off my gravel bike by replacing wheels, cassette and rotors.