These are fabulous wheels. The SES 4.5s make for a great all-around wheel set that can be used for both training and racing. A five year warranty helps put your mind at ease when you’re doing either.
The CK hubs engage quickly, are smooth, and roll forever. I haven't ridden them in the rain yet, but the textured brake surface slows me down noticeably faster than my other ENVE wheels without them. When you apply the brakes the textured surface makes it so they're not silent as a good set of alloy hoops, but the sound they make isn't the high-pitched squeal you get from poorly adjusted rim brakes or discs, for that matter. If you’re braking in the corners like a rookie, everyone will know it.
With the added depth they don't spin up quite as fast as my 3.4s but they're no slouches, either. And once up to speed, they're much easier to hold at speed, too.
One of the more remarkable things about this wheel set is how well they deal with crosswinds. I feel more pressure on my SES 3.4s (previous generation) than these; they’re very easy to control, though really light riders (<150 lbs.) may feel it more.
They are also very stiff. I keep my brake pads adjusted very close (1mm clearance) and the only time I get any rub is when I’m cranking around a corner. They’re silent in straight sprints and climbing out of the saddle.
Comfort comes as an added bonus to it’s aero qualities: you can run lower tire pressures while reaping the aero and lower rolling resistance rewards that come with a very wide internal track and external measurement.
If I had to nitpick, I do wish these were tubeless instead of clinchers, but that doesn’t lessen how they ride or how much I enjoy them.
As a whole, these are definitely not cheap wheels, but are a worthy upgrade to your bike and a whole lot of fun to ride.