🚴♂️ Elevate your biking game with ZUKKABike! Compatible with most 1-1/8" threadless steering tubes. Crafted from high-strength aluminum for long-lasting use. High toughness ensures a secure and stable ride. Transform your biking experience with adjustable height! Quick and easy setup for immediate comfort. High-strength aluminum alloy Adjustable height up to 100mm Compatible with 1-1/8" bikes The ZUKKABike Fork Stem Extender is an adjustable bike handlebar riser made from durable aluminum alloy, designed to increase your bike's height by up to 100mm. It fits most 1-1/8 inch threadless steering tubes and is easy to install, making it perfect for mountain bikes, road bikes, and more. With a focus on safety and comfort, this extender reduces waist pressure for a more relaxed ride.