I know they are a discontinued wheelset
Funny Alps obsolescence notice from HED: http://www.hedcycling.com/wheels/alps.php
You don’t know how hard it is for me to say this, but I think it is time for us to break up. We had some great times – I’ll never be able to forget your light weight and durability, and you are still super fast. You were an awesome ride but things have gotten stale. It’s not you, it’s me.
To be completely honest, ever since I met your cousin Jet I haven't been able to get her off my bike. She rides a lot like you but she is even lighter and more durable and she’s a little more aero too. You know how I like those things. It was impossible to resist her, and when I found out she has two sisters I almost fainted.
I’ll always remember you and you’ll have a place on my commuter bike for as long as you like, but the future is with Jet. Let’s stay in touch, modern engineering can work miracles sometimes – maybe we’ll get back together at a future date.
With fond rememberances, Hed Wheels