Timber MTB Model Yew! MTB Bell Yew! Timber Bell Tell 'Em Having a bell on your bike is much nicer than yelling "Get out of my way!" every time you see someone on the trails. The Timber Model YEW bell is designed to alert other nearby trail users of your presence. Using a spring-loaded on/off switch, the bell can be turned on, the ringing activated by the motion of the bike, or it can be silenced when not needed. The Timber bell offers a friendly way to warn other trail users of your approach. Features Spring-loaded piston on the on/off lever for smoother shifting Fits 35mm bars and includes shims for standard 31. 8mm and 22. 2mm bars A hinge pin in the bar clamp provides easier mounting and secure holding power | Timber | Mtb Model Yew! Mtb Bell Bolt-On Black