How To Make A Dirt Bike Street Legal So you want to turn your dirt bike into a street legal thrill ride or a fuel-sipping commuter? If this is what you desire, then you will have to do some work first! You must follow the guidelines below to be considered legal for operation on state and federal roadways. approved headlight with high and low beam function Headlight indicator light visible to the operator to show when the high beam is operating Battery-powered, approved tail light and brake light approved turn signals for motorcycles Rearview mirror (usually one, but some states require two) Horn approved tires installed Fuel tank should be approved speedometer