Topic summary
Dirt bikes
Extracted from the Wikipedia article Types of motorcycles.
Off-road
Off-road motorcycles, also known as dirt bikes, trailbikes or scramblers, are specially designed for off-road use. The term off-road refers to driving surfaces that are not conventionally paved. These are rough surfaces, often created naturally, such as sand, gravel, river beds and crossings, mud or snow. These types of terrain can best be traversed with bikes that are designed to better handle off-road conditions. Compared to road-going motorcycles, off-road machines are lighter and more flexible, typically have long travel suspension, high ground clearance, and are geared lower to provide more torque in off-road situations. Wheels may have knobby or hybrid dual-purpose tires, often clamped to the rim with a rim lock. Many competitive events exist and have prompted the development of varied off-road motorcycle sports, for which a number of specialized motorcycles have been built: