ZTTO Aluminum Alloy Bike Stem MTB Stem Degree Adjustable Raise Up Function Bicycle Tool

• Constructed of high-strength Aluminum Alloy material, hard and wear-resistant, durable for long-term use
• Use the adjustable stem height to achieve a more comfortable riding position, allowing you to sit more upright on bike, which is better for your back
• The stem has multiple sizes for selection
• Easy installation, just connects up the original front fork stem
• Universal handlebar stem suitable for most road bikes, fixed gear bicycles, mountain bikes and so on

Note: The diameter of the front fork of these 6 sizes is 28.6MM, the difference is that the diameter of the lock handlebars, one is 31.8MM, the other is 25.4MM, please choose according to your handlebar diameter (31.8MM or 25.4mm).