The BySchulz Twist Pro SDS Ahead T11 stem riser is suitable for a 1 1/8 steel ahead fork with an inner diameter of 25.4mm and is 11cm height adjustable. The stem allows precise, tool-free handlebar height adjustment in seconds using the quick release lever. The handlebars can also be rotated 90 degrees to the left or right, and the angle can be adjusted. More about the function of a stem riser The height of the handlebars determines riding comfort. However, there is no ideal handlebar height. A different handlebar height is recommended uphill than downhill or for flat sections. Intuitively, differences are compensated with the arms and back. This is tiring and can lead to pain. This stem riser offers the solution by easily adjusting the height as desired - even spontaneously, on the go. It can be set upright or sporty. Specifically designed for sporty city and trekking cyclists and e-bikers. Please note: available in 3 sizes: 722271 - 73mm stem with a handlebar diameter of 31.8mm 722272 - 88mm stem with a handlebar diameter of 31.8mm 722273 - 103mm stem with a handlebar diameter of 31.8mm Stem riser - height adjustable Suitable for: 1 1/8 steel A-head forks with an inner diameter of 25.4 mm 11cm height adjustable Precise, tool-free height adjustment Allows the handlebars to be rotated 90 degrees Angle can be adjusted With SDS Front Cap for mounting accessories such as headlights BySchulz Item number: 722272 EAN code: 4251239307651 Retail packaging: Yes