With the plastic glue rims giving much superior aero.. where is the market niche for this hoop? Do a significant number of riders who find value in air-O want less than optimal performance in this component class of checkbook cycling?
I mean my alloy hoop set is 300+ lighter... albeit with far east spoke holders centered in each with same region pop can aluminum rims that cost about what a decent lunch goes for.
Rotating weight I can SEE is faster.. air-O is more what one THINKS is faster and not real world.. for the vast majority of those powering bicycles.
Hopefully you define "much superior aero" as somewhere between 0 and 3 watts, because that's what we've learned that they're worth. See this test we did last winter https://novemberbicycles.com/blogs/blog/wind-tunnel-testing-the-al33-xr31tfsw3-and-other-alloys
Tour Magazine's test in Issue 8 from 2016 shows a 13w aerodynamic spread between Mavic Ksyrium and (worst in test) and Zipp 404 and DT Swiss 65 (equal best in test). They show a 3w difference between 303 and 404, with 303 being within a watt of Bora 50 and Shimano C50. By extension from our test linked above, that means a 404 gains you 3w over an Al33, and Bora 50 and C50 gain you nothing.
On weight, 500 grams is lighter than a Firecrest 303 or a 404 (don't know about Firestrike, but I think they are also 500g+), and very very competitive with other carbon rims in this depth category. So your rotating weight (which btw isn't nearly the factor you might think it is) should see a benefit to the Al33 over a lot of carbon rims.
Kinlin 31 also proved very good in our aero test, as the 279 did in Tour's test. 31s are not quite 480g, the several dozen we have in stock all hover right around the 500g mark.
There are a bunch of hills to climb for the Al33 - biggest of which is that it's a voice for alloy in a market that pre-supposes that carbon is superior in all regards even when it is demonstrably inferior in some if not all - but they are off to a great start and have been a VERY popular rim for us this year. Except for one customer who didn't like what his scale told him and was unhappy for that, they have been universally loved. "My carbon wheels now collect dust" is the prevalent feedback. Incidentally, most customers have found that Al33s are stiffer than their carbon wheels. They're great rims, and the braking is very nearly as good as with discs, even in the rain.