This weekend in Salt Lake City, some of the world's youngest bike riders faced off during the 2017 Strider Cup World Championship. 100 2-year olds are underway!! @danonewave @intermountain @competitivecyclist @chickfila @thecolorrun A post shared by Strider Bikes (@striderbikes) on Jul 22, 2017 at 8:46am PDT Toddler balance bike racing is "the country's cutest sport," Strider Bikes said, and nearly 400 racers, from 18 months to five years old, participated in the championship.