About two years ago, a Dos Pueblos High School freshman hopped on his e-bike to commute home. Minutes later, a car hit him, sending him flying off his bike on Cathedral Oaks Road. Dexter Thulin is not the only student to have been involved in a crash on that road near the high school. There have been about five accidents involving students, vehicles and bikes along Cathedral Oaks Road in the past two years and three in the past school year, acc…