Honda TRX 450R Specs

The Honda TRX450R is a sport ATV designed for off-road, cross-country racing. The TRX450R was first produced in 2004 and provides a variety of features suited for competitive riding. The TRX450R is available in two basic feature packages that includes versions with a manual or electric starter. The most recent version of the TRX450R is the 2009 model, which had an original MSRP of $7,449.

  1. Power

    • The TRX450R is powered by a single-cylinder, four-stroke engine. This engine has a displacement of 450 cubic centimeters and uses a liquid cooling system. The TRX450R's engine has a compression ratio of 12.0-to-1. The motor's valve train consists of a four-valve unicam with a 36-millimeter intake and a 30-mm steel exhaust system. Its induction system is a Keihin 40-mm flat side carburetor that includes a throttle position sensor. The ignition system for the motor is a CD-capacitance discharge-type ignition with electronic advance. Power is translated to the tires through a five-speed transmission and a driveline that uses an O-ring sealed chain.

    Suspension Systems

    • The TRX450R features a variety of suspension and braking systems designed to provide safety and stability. The TRX450R uses 22 x 7-10 and 20 x 10-9 knobby radial tires on the front and rear axles respectively. Its front brake system uses 174.0-mm dual hydraulic disc brakes that utilize twin-piston calipers. The TRX450R's rear brake system consists of 190.0-mm single hydraulic disc brakes with a single-piston caliper. Its front suspension system uses Showa shocks and an independent double-wishbone suspension system with an adjustable spring preload, rebound and compression damping. The TRX450R's rear suspension system uses one Showa shock with adjustable spring preload, rebound and compression damping. The front shocks of the TRX450R have a maximum travel distance of 8.4 inches while the rear shocks have a maximum travel of 9.3 inches.

    Size and Capacity

    • The TRX450R has a maximum fuel capacity of 2.7 gallons including its 0.8-gallon reserve tank. With standard equipment and a full complement of fluids, the TRX450R has a curb weight of 381 pounds. The chassis of the TRX450R has a ground clearance of 4.4 inches. It measures 73.3 inches in length, 43.3 inches in height and 46.3 inches in width. It has a wheelbase of 50.2 inches and its seat is situated 32.8 inches above the ground.