Bike mirrors allow you to see what’s behind you while riding, which can help you avoid collisions and other dangers. These devices are available in several different styles and can be mounted to either your helmet or your handlebars. There are pros and cons to both types, so you should choose the one that best suits your needs.
Handlebar-mounted mirrors are the most popular type, and they are easy to install. You simply remove the bar-end plug or cut a hole in the end of your handlebar and slot a cylindrical piece of the mirror frame inside. A clamping mechanism expands when tightened to hold the mirror in place on your handlebar. However, these devices can be subject to vibration that can distort your view, and they may also add a lot of drag to your bike’s performance if not positioned correctly.
Helmet-mounted mirrors can be less distracting, but they can also be difficult to use because you need to look down to see them. Some cyclists find them to be more effective than others, though they can be more expensive. They are also generally easier to install and can be attached to your helmet or glasses using an adhesive pad.
Another advantage of helmet-mounted mirrors is that they can help you communicate with drivers by looking at them. This can be helpful if you are planning to make a maneuver in front of them, as it lets the driver know that you will be turning or otherwise changing course.