Honda TRX-400 Ex is the Honda ATV (All Terrain Vehicles) motorcycle type which is basically for off road sports usage and bike rallies. The Honda 400 Ex was nominated in the U.S. as ATV of the decade. The TRX was incorporated using the Honda XR engines and specialized for the ATV running.

Honda 400 EX is a 4-wheeled vehicle and has many unique features such as an electric start, a distinctive reverse and 4-stroke air- cooler. They are available in black and red color. It has a technically advanced functions, long travel suspension and specialized body suitable for races and rallies on gravel- surfaced landscapes. It uses 397cc engine capacity and RFVC air-cooled dry-sump and a single-cylinder. Honda introduced its light weighted and stronger- single piece aluminum swing arm; which is incorporated in this bike. It has an aluminum front wheel spindles and has a manual gear shift. The spindles are sturdy and buoyant. The frames of the Honda 400 Ex are made of steel and have a powerful front suspension with double wish-bone forks. There is a good lubrication system because of which is Honda 400 Ex bike provides better stability and ground clearance. These ATV's have good hand grips with a low pressure tires and can be operated by only single person.

The Honda 400 Ex is recommended for riders who are above 16 years of age. The separate ATV accessories are also available including but not restricted to tires, batteries, ATV filters exhausts and ATV bumpers.