bdei my new city bike, that's great class otherwise, was the Bell of plastic and otherwise puny. In one of the first exits of the bell head jumped off, one part went untraceable lost. So I was compelled to remedy the situation. The requirements were: small, noisy handy. so I went through the relevant offers at amazon and found one with the BBB Klingel. The first surprise was the easy assembly with the two rubber rings which fastened the bell in the desired position properly near the gear lever. Now I'm going with it for 3 months and am consistently happy with it. So, everything was perfect!