Except their stems kinda do suck.
Look at how tall the Syncros stem is there compared to a RaceFace stem. 40mm on the RF vs. 60mm on the Synrcos. Meaning that any bike running the Syncros will have to have a 20mm longer steerer tube. This is annoying!
There's been a couple times I couldn't use this stem on a bike because of this.
Third problem is my favourite bike accessory, the Niner Bikes You are What You Drink topcap. This top cap allows you to attach a bottle cap on it after you've properly pre-loaded your headset. But you can't use it on a Syncros stem because of the stupid angle cut on the top of the stem.
And a quick side note on that angle cut; Rocky Mountain angle cut their seat tubes for a couple years, which looked super cool, but what a pain in the ass those were. Lose yours, and then what? Did Rocky make a whole bunch of extras - sure doesn't seem like it. I don't mind admitting that I've cut the seat tube square on a Rocky Thin Air so a regular clamp could be used because the one on the bike got warped and didn't grab the seat tube properly.
The price of being cool...
For the first year Syncros made their custom topcap out of aluminium, then then went to plasriv after that. And like the angled seat clamps Rocky used, if you lost your Syncros topcap, you're out of luck - you couldn't use the regular topcap that every other stem in the world uses. You know, the kind like you probably had a dozen of lying around?
Not to mention that the plastic one was easily torched by amateur mechanics, rendering it useless. I put a bunch of Gorilla glue on the one above, and it kinda works. Not sure why I have two of these actually. I don't think I have two extra Syncros stems.
So yeah, that original Syncros quill stem was bad-ass. The later ones, still bad-ass - they don't suck - but they're really limited in where you can use them, which sucks.