In addition to traditional motorcycles, Dayun Motorcycle generates various types of Off-Road Motorcycle, also known as dirt bikes, designed for off-road use. Off-road model vehicles drive mainly on rough surfaces, such as terrain formed by sand, gravel, rivers, mud or snow. These types of terrain can sometimes only be used with vehicles designed for off-road driving or vehicles designed to better cope with off-road conditions. Off-road machines are lighter and more flexible than road motorcycles, typically with longer suspension travel, higher ground clearance, and a higher number of gear teeth to provide more torque in off-road situations. The wheels (usually 21-inch front wheels, 18-inch rear wheels) have multiple tires, usually clamped to the rims with rim locks.

Many competitive events have emerged and developed into various motocross sports, for which many professional motorcycles have been built.

Motocross – This type of motorcycle races on short, closed off-road tracks with a variety of obstacles. The motocross bike has a small fuel tank that is both light and compact. The long-travel suspension allows the rider to jump at high speeds. Motocross engines are single-cylinder two-stroke or four-stroke units that range in size from 50cc to approximately 500cc. At the professional level, the bike is divided into two levels according to displacement: MX and MX Lite. The MX Lite class includes a 125cc two-stroke engine and a 250cc four-stroke engine, while the MX class compares a 250cc two-stroke engine to a 450cc four-stroke engine. Differences in power, displacement, torque, and weight are all variables that balance the competition between two- and four-stroke engines. Motocross sidecars are equipped with larger engines, usually four-strokes, and usually two-cylinder. Motocross is also used in freestyle motocross.