We took our super popular Turbine 35mm stem and turned the volume up to R. Increased strength to handle the harshest aggressive all mountain riding combined with an update to 0-degree size for optimized fit and performance. This stem sets the new standard in weight vs strength. CNC Aluminum 0° rise for perfect fit on aggressive bike frames Extensive CNC machining for weight reduction without impacting strength TopLock faceplate design for easy and secure installation Colour: Black Steer Tube Diameter: 1&‌#8539; Bar Diameter: 35mm Rise: 0 Weight: 138g (50mm) Size: 32, 40, 50, 60, 70 .