The new DB-02 works with the inner battery is designed for the off-road bike without battery. With the new dynamic design shape, the DB-02 could fit your off-road bike or ATV well. With the changeable bar graphic tachometer function, you could adjust the bar graphic tachometer to fit different types engine as you need. Except that, the new designed 3 stage shift light could make you to make the gear shift timing perfect. Besides that, we add the digital tachometer function, so you could also switch the digital speedometerto digital tachometer when you want to use the meter on the race.