Coghlan's Bear Bell with Silencer
The Coghlan's Bear Bell attaches to clothing or pack with a velcro strap. The movement you make while riding will cause a steady ringing to warn animals or nearby hikers of your presence. The magnet inside the bag eliminates any noise.
Most of my rides are on the weekend a.m. which is usually peak time on the trail. Me and all my friends ride with these a good way to alert hikers.