From the manufacturer's official website:

The new Newton 31/86 stem has a special 86° rise (angle between steerer axis and stem extension). This makes it possible, with a stem of 120 mm extension, to raise the center of the handlebar by 8 mm (0,3 inch) with standard assembly, or to raise the handlebar by 24 mm (1' inch) with reverse assembly, relative to a regular Deda Newton 31 stem. Each rider can find his optimum riding position. Titanium 6/4 hardware

Technical Data:

• Handlebar O.D.: 31,7 mm (Newton standard)
• Fork steerer O.D.: 28,6 mm (1’1/8)
• Extension angle: 86°
• Tightening torque: for all bolts, 8 Nm (5,9 ft.-lbs)(71in-lb)
• Weigth (120 mm size): 135 grams

For more information, please visit this product's webpage.