Bryton Rider Combo Sensor (New PACK)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Self-calibrating and wirelessly measure your speed and cadence while riding</li><li>Cycling speed/cadence combo sensor for Bryton cycling computers</li><li>Mounts on rear chainstay</li><li>Attaches easily to most bicycles</li><li>Measure your pedaling strokes up to per minute and captures results for later analysis</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41O1P88HI9L.jpg" noproxy>