1 of 1 people found the following review helpful
Vital safety aid,
Verified Purchase(What is this?)
This review is from: Zefal Spin Mirror - Black, Large (Sports)
I really didn't realise how useful this device would be, but it's easy to fit (5 mins maximum) and adjustable to overcome any issues of it moving on bumpy roads. It can move when leaning bike on walls etc when at a stop, but that's an easy habit to break. Once used to it, it's convex nature gives a fisheye view of what's going on behind you, and much like car door mirrors it does have a blind spot. As an aid and general indication to what's approaching from behind though it's right on the mark. Money well spent i'd say for a bit of additional safety, especially if like me you can't turn your neck back far enough to easily see behind you.