1.Helps extend the fork stem from 1.3 to 3.7 inches.Sturdy stem adapter is less likely to loosen and increases safety when using. It is corrosion resistant and rust resistant, high toughness and does not deform. 2.The bicycle stem is designed for 28.6mm front fork.The stem highriser can be adjusted to fit your needs freely, effectively reducing the pressure of the waist and allowing for a more relaxed ride. 3. Bicycle stem risers are made of anodized aluminum alloy construction.You can easily connect the front fork stem of your bike to make it right.

4. Proper adjust the handlebar height to make it easier to have traction on the rugged hill.The bicycle handle up is more free and lightweight, and it is easy to operate when you climb, making it comfortable and convenient. ?5.Without bending the body too low, it will bring you a fun and relaxing cycling experience.Perfect for cross bike, road bike, mountain bike, etc. Specifications: Color: Black; Optional Height: 4.5 inches (115 mm), 7.1 inches (180 mm).

Material: 6061 aluminum alloy; Stem tube diameter: 1.1 inches (28.6 mm) / 1.1 inches (28.6 mm) / 1.1 inches (156 - 245 g); Package list: 1 x bike stem extender (bicycle in the picture is just a prop).