Dirt Bikes are designed and built to be ridden off public roads, on rough even mountainous terrain. These dirt bikes feature small engines having less power than larger bikes, long suspension travel as well as high ground clearance, simple construction and minimal body work, no street accessories (such as turn signals and horns), and large wheels with heavy-duty tires for traction, clamped by rim-locks.
The types of dirt bikes are in reference to their engines:
Common sizes for dirt bike engines are:
Young Riders: 50cc 150cc
Older or Adult Riders: 250cc, 400cc, and 650cc
Having both air- and water-cooled motor systems, dirt bikes are designed for a variety of purposes, most especially competitive sports (Motorcross, Enduros), time or speed trials, rough terrain traversing, endurance, and fun and recreation.
Trial bikes are a particular variation of dirt bike. They are designed for motorcycle trial conditions, and are expected to be pushed to the limit, which is probably one reason they arent built heavy or sturdy. Typically, this kind of dirt bike...