[Handlebar diameter: 31.8mm (1-1/4") Tube diameter: 28.6mm (1-1/8") Length: 50mm (center distance of the two holes) light weight it\s specially selected for riders who are looking for lightweight so you can easily enjoy the fun of riding. We have five cool colors for you to choose from: Black Red Black Titanium Black Blue Pink Gold and Purple Titanium. High-gloss color meet your needs for different colors. Constructed of high-strength CNC machined 6061 T6 aluminum alloy this stem ensures a secure and reliable connection. Easy installation just connect up the original front fork stem. Four bolt bar clamp holds bar securely in position. Suitable for modified DIY upgrade the bike. Downhill Chongshan climbing. This small but mighty stem effectively makes the top tube and reach shorter making you able to sit up straighter and more comfortable.]