Don't know that there can be that much of a performance advantage in a carbon stem but, I put one of these on my 3T Exploro Race gravel bike when I built it, and it really looks great on the bike (as do the Enve wheels). Get lots of comments and inquiries about it while out on the trails. It is expensive but, it is made in the USA and looks as expensive as it is.
Upgraded the cockpit on my Parlee Z5 with Enve stem and Enve seatpost. (previously using aluminum Syntace and Thompson, respectively). Night and day difference, so much more comfortable. Now I have seamlessly blended Enve SES 3.4 wheelset, with Enve fork and Enve cockpit. Really solid, legit handling! Bravo Enve - you guys are dope!
Enve stems are finished nicely, and they feel solid and robust.
I like the looks of the stem and installation felt smooth.
I like the fact that Enve provides tutorials on-line for almost all of their products.
Don't forget proper torque .
I have had aluminum and carbon stems from multiple brands. I honestly canï¿½t say I notice a difference other than that carbon looks like..., carbon. This is a good stem, looks fast, and has that name brand behind it!
Replaced my S-Works SL stem 100mm with the 90mm from Enve. I rode a few times, 50 miles and had no issue with the vibration effects (arms feel ok post ride). The cockpit seems to be stable on roughs and descent. I will participate in an event this week which will go over a century, will see.