DRC/ZETA/UNIT Self-Timing Lap Timer for CX & SX Handlebars 428630Self timing lap timer for easy measurement while riding. It quantifies the results of daily practice and differences in speed due to differences in settings, contributing to efficient skill improvement. The timer is designed to be simple and easy to understand, and does not use any GPS or wireless devices, but only a wired button. There is no need to equip expensive gadgets such as smartphones. Repeated test runs mainly on off road courses have