Bicycle Handlebar Riser Stem Extender Adapter (180mm) - Wake Bike Cycling Raiser for Better Riding Experience This bike fork stem extender is a helpful tool to raise up the head handlebar of your beloved bicycle to make it easier to hold traction on the steep hill, and bring you enjoyable and relaxed cycling experience without bending the body too low. Features: Help to extend the fork stem by 1.3 - 3.7in. Designed for 28.6mm front fork, two raiser heights optional. Anodized aluminum alloy construction, solid and strong. Adjust the height of your handlebar properly makes it easier to hold traction on the steep hill. Bring you enjoyable and relaxed cycling experience without bending the body too low. Specification: : Wake Condition: 100% New Color: black Optional height: 115mm, 180mm Material: 6061 aluminum alloy Stem tube diameter: 28.6mm / 1.1in Front fork diameter: 28.6mm / 1.1in Weight: Approx. 156 - 245g Package List: 1 * Bike Stem Extender (bicycle in the picture are just props)