The Ang�l Dynamic Fit stem provides a simple, quick, and precise way to find a rider's desired stem reach and rise. It can be used on a rider's existing bike or in conjunction with the M�ve SL dynamic fit bike (or any fit bike of your choice). 1.125-inch standard steerer clamp bore 31.8mm standard handlebar clamp. 42mm steerer clamp height. Angle adjustment of +/- 30 degrees. Five-axis CNC machined from billet 7075 series aircraft aluminum. High accuracy CNC-engraved length and angle markings. Narrow 44mm design allows clearance for aero bars and cables. Self-locking lead screw operation allows optimized angle positioning. Simple-turn crank movement for fast adjustability. Teflon� impregnated electro-less nickel coating on length adjustment for smooth operation and durability. Titanium side angle caps.