Originally Posted by
brawlo
The ARX is now superseded but there may be some old stock around. I got mine via my bike fitter with connections to the Aus 3T importer. The new 3T Apto stems list up to 150mm on their website
Super D, if you are in AUS, you can get a 150mm Zipp Service Course SL from our distributors. We made a limited run, they have/had some. If they don't have them in stock they should be able to help you find one. Our 140, and 150mm stems are the stiffest alloy stems we have tested. The only thing stiffer is our SL Sprint stem but that only goes to 140mm.
Nate at Zipp.