3D Aluminum 7050 Forged Stem Column Diameter 1-1/8" Handlebar Diameter 31.8mm Rise 17° M4 Volt, Bolt Head: T20 Maximum Tightening Torque: 6Nm Weight: 3.2 oz (86 g) (80 mm), 3.9 oz (90 mm), 3.9 oz (105 mm) (1111111111110 mm) Product color may differ from the actual product depending on the type of display. Product specifications, logo design, etc. may be subject to change for product improvement. Also, we are not responsible for measurements or personal fit that the manufacturer does not listen. Please be aware of