Announce your presence on the trail. Designed for safe, friendly passing on shared trails. Available in both a quick release model for easily moving the bell between bikes, as well as a bolt-on model that bolts on tight and won't spin or shake on your bars. Fits all handlebar diameters: from standard 22mm all the way to 35mm DH style. Mount it on the bars for occasional use, or directly on the grips for instant shifting between silent and ring mode.
I have been using the mountain bell on the bike trails near my home - it's been very effective in quietly warning people (especially those with dogs!) that I am coming up behind them - and they move to the side. Great product!