Very stable while riding and easy to remove. A bit fiddly in high wind to get map out and change the page view. The plastic cover is quite stiff which is an advantage in getting the map in and out but also means it is more vulnerable to splitting compared, say, with Ortlieb walking map holders made of softer material. Despite this, the basic design is so good and the price compared with others so competitive that I will buy another one and be particularly careful sliding the map in and out. Also, if you are using Ordnance Survey maps, take the silly cardboard cover off to make their maps easier to fold and put in the holder without damaging it.