Package Bicycle handlebar stem adapter Material quality aluminum alloy. Stronger and more durable with stability. Adjustment Extends the handlebar stem for flexible operation and a more comfortable ride. Applicable size Fits handlebars with inner diameter 22.2 mm or 25.4 mm Key benefits Improves riding comfort: raises and extends the handlebar to achieve a more natural, upright riding position. Durable and stable: aluminum alloy construction provides longlasting strength and reliable performance. Wide compatibility: designed for inner diameters of 22.2 mm and 25.4 mm handlebars, enabling flexible use across common bike setups. Use scenarios City commuting: upgrade your bike to a more upright posture for better visibility and reduced neck strain during daily rides. Longdistance rides: adjust reach and height to reduce fatigue on extended trips or tours. Accessory compatibility: or adapt to handlebars with 22.2 mm or 25.4 mm inner diameters to match existing stems and controls.