Newlight66 Bike Mirror, Adjustable Handlebar Rear View Mirrors for Bicycle Mountain Road Bike …

Easy to put on my bike and very flexible for adjusting for my height. The only problem is where they are located, I often knock the mirror out of alignment when I put my bike away and have to re-align them before riding again. Other than that, great.

PROs: Quick & easy install. No tools required. Clear images. Once the mirror position is adjusted for the best view, its position does not drift and holds steady even while traveling down a bumpy road. CONs: Only disappointment is that the mirror curvature (to give a wider field of view than a flat mirror surface) is considerably greater than the passenger-side mirror on a car. When traffic approaches from behind the image in the mirror is so tiny that the traffic may go unnoticed until the car is less than 200 feet ( 60 meters) behind the bicyclist. By then, the bicyclist will likely have heard the approaching car before seeing it. This also makes it tricky to plan left turns in traffic. I added another mirror from a different manufacturer to provide my desired level of safety. If this mirror had a gentler curvature -- like an automobile mirror has -- this product would have earned a solid 5 stars.

Be aware that these mirrors are pretty small, much smaller than my previous mirror. Also, the rubber strap used to fasten them to your handlebars is not all that elastic, even less so if you happen to be cycling in cold weather. Make sure you know the diameter of your handlebars/grips before you buy these. I barely got them to fit on my grips. I really thought about returning these, but I decided to keep them mainly because I can remove them from my bike when parked. All in all, they are just OK.

Very easily installed and gives biker a "heads up" as far as overtaking traffic from behind at a glance.Image of a bicyclist behind is quite small due to parabolic mirror but acceptable.

The mirror works pretty well. The pros are that it's easy to install, the view is wide angle, and it's adjustable. The cons are that objects are much closer than they appear (just need to be aware of that fact), and the mirror doesn't stay in place all of the time. However, I was able to tighten the mirror joint with an Allen wrench and that helped it stay where I wanted it much better.

The fit worked well on the canopy of our tandem tricycle but after a few rides we determined some of the reviews were correct. The convex of the mirrors is way too much. You can see traffic behind you but you need to turn around to see just where they are. Kind of defeats the purpose.

I though these would help my wife and I as we ride our bikes in our neighborhood. Very difficult to see from them. The also seem to steam up a lot as well. Very cheaply made

The connect to the handle bar was too smallMirror stem wasn't long enough to see behind, even the bar connection would have work.