Bike Bicycle Stem - -65 ~ +45 Degree Adjustable bike Stem- 90/110/145mm Bike Stem Riser For 31.8(1-1/4") Handlebars- Aluminum Alloy Mountain Bike Handlebar Riser Extender For Mountain Road City Bike - GEWAGE

• 【Compatibility 31.8 Handlebar & 28.6mm Tube】- This bike stem is custom made for your bike and designed to meet the needs of most bikes on the market. Bicycle handlebar risers are compatible with 28.6mm (1-1/8") diameter fork tubes and 31.8mm (1-1/4") diameter handlebars and is available in a range of lengths – 90, 110 and 145mm. PLEASE MEASURE THE SIZE OF YOUR BIKE ACCURATELY BEFORE PURCHASING. 【Aluminium Alloy Material】- The adjustable bike stem manufactured with a 3D Forged aluminum alloy construction that gives strength and control. The surface of the bicycle handlebar risers uses the frosted process. The hexagonal hole design makes the split body fully conform to the structure, greatly increasing wear resistance and reducing noise. Which can bring maximum safety to your driving. 【Ergonomic Design for Your Riding Health】- The bicycle stem riser can provide a maximum angle adjustment of ±85 Degree and precise scale, so you can freely adjust the handlebar height you want and change the riding style to relieve the waist pain, neck pain caused by improper handlebar height , inability to straighten your back and alleviate other health problems. 【Ideal Stem for Rider】- The bicycle stem is the best choice for all types of riders. Whether your teenager's physical growth leads to a need for height adjustable bars, or you are looking for a healthier ride, or you are a mountain bike or road bike enthusiast, you can rest assured that our adjustable stems can meet your various needs. 【Easy Assembly, Quick and Convenient】- The assembly process of the 31.8 stem is simple and quick. You can adjust the handlebar angle anytime, anywhere with the included hex bolts. When assembling, please carefully check whether the screws are tightened to avoid safety problems caused by loose screws.