Found this while checking out the dangerboy site the other day
-10 degree rise 67 or 50 mm stems. The 67mm stem will lower your bar by just under an inch when replacing the 888 integrated stem. Unfortunately you need to run at least one spacer to use the 51mm stem with the stock upper crown. They come in 25.4mm and 31.8 mm. MSRP is 125 cdn.
I've got one ordered that should be in in a week or so. I'll post up picks when I get it in. I'm not a big fan of the looks of the stem...it reminds me of a roadie stem...but it's function over fashion for me.
I was going to get a set of lowrider crowns but I wasn't sure whether I wanted to steepen the front end up on it any more so I'm going to try this stem out first. I'm still considering getting a set of lowriders as well...I haven't decided on go-ride or risse yet though.
check out http://www.dangerboyusa.com/stems.php for more details.
They've got some sweet low stack height stems available as well. My buddy just picked up an ak47 from them and is is really nice.