UPANBIKE Bike Handlebar Extender Extension Carbon Fiber Bracket Aluminum Alloy Clamp for Bicycle Speedometer Headlight Light Lamp Holder

This is great. Will probably buy a 2nd for another bike. Tight fit but glad it is as it takes up less space on the bars. Mounted upside-down to fit and works well. Now holds phone holder and room for a light. I added a small strip of 3M 2228 mastic tape to help add friction on my 31.8mm bars.

delighted with size of erection.came quicklee.wiff satisfied too. wood wreckomend

Good concept, poor execution. Couldn’t be tightened satisfactorily cheap little plastic plug, kept falling out of the cylindrical part of the bar mountNeeds a reed sleeve to keep it from sliding on the handlebars

Material: plastic (stem clamp)Tube: although its says carbon, its more than a carboard tubing in carbon design.Installation: beacuse its plastic it seems its going to break if you tighten them up more, not holding the handle bar good its still loose, it will stand heavy load like celphone or gps. 🤷‍♂️Verdict: ReturnTip: get a good solid aluminum bike clamp and buy a copper or aluminum tubing and paint it.

It does its job once installed but the spacers supplied do not allow this to grip the handle bars sufficiently. If you use some tape around the bars before you mount this it will stop it from moving.