4 of 4 people found the following review helpful
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This review is from: Zefal 95293 Spy Double Adjustment Bike Mirror for Road and MTB (Sports)
Bought this on basis of reviews. It's dead easy to mount, and I now have it on my top tube, which gives me a beautiful view of, alternately, my right leg and the road behind me! It's easy to glance at and keep a feel of what's going on behind, although you'd still want to turn and check properly before undertaking any death-defying manoeuvre like turning right.