Origin8 Throwdown MTB Stem - New Moon Ski & Bike | Hayward, WI
Amazon.com : Wake MTB Stem 45 Degree 31.8 90mm Bike Stem Mountain Bike Stem Short Handlebar Stem Riser for Most Bicycle, Road Bike, MTB, BMX, Fixie Gear, Cycling (Aluminum Alloy, Black) :
Negative Angle Mountain Bike Stem MTB Road Bike Stand 17° Stems 31.8/ 28.6mm A | eBay
ProTaper | MTB Stem | Mountainbike Stem – Hayes Bicycle
FSA MTB Gradient 31.8 mm Stem, Multicolor | Bikeinn