2018 Honda CRF450RX Red YOUR ULTIMATE OFF-ROAD ADVANTAGE. When the Honda CRF450RX hit the scene last year, it blew everyone away. This was more than just a premier-class motocrosser with an electric starter. Its a serious off-road weapon fully optimized for trophy-class competition in enduros, hare scrambles, and GNCC racing. This year weve upgraded the battery to a lithium-ion unit for lighter weight and better performance, and removed the kickstarter to also save weight. If youre serious about winning and want the biggest advantage you can find, the 2018 Honda CRF450RX delivers. Features may include: ENGINEERING - Electric Start The 2018 CRF450RX comes with a lightweight electric-starting system as standard equipment. The lithium-ion battery is also super light. Its a win/win combination. - Large Fuel Tank Stopping for fuel in a race costs time. With the CRF450RXs 2.2-gallon fuel tank, depending on the course and how much roost youre making everyone else eat, its possible to make it through a three-hour enduro with just one fuel stop. - Engine Mode Select Button This simple, handlebar-mounted button lets you dial in engine power delivery character with a push of your thumb. Choose between Standard, Smooth, and Aggressive, depending on course conditions. HANDLING - 18-Inch Rear Wheel An 18-inch rear wheel is another indication of our fine-tuning the CRF450RX for off-road racing. Whether its red Georgia clay, Florida loam, or Baja sand and rocks, youre going to find this bike offers the performance you need. - Off-Road Suspension with Spring Fork Designed specifically for the demands of off-road riding, the CRF450RXs Showa Spring Fork and suspension components are fully adjustable and chosen to give you the ultimate tunability and performance in the field for changing conditions. - New Dual-Muffler Exhaust System The CRF450RXs dual exhaust system is compact and positioned closer and lower in the frames center to take weight off the rear end and bring more mass to the bikes center for superior handling. PERFORMANCE - Dunlop Geomax Off-Road Tires The Geomax AT81 tires are specially designed for off-road riding, and help the CRF450RX hook up and put its holeshot traction to the ground. - Aluminum Frame Our twin spar aluminum frame positions the rear shocks mounting point low, opening up the airbox area and contributing to a lower center of gravity. The frame geometry also helps give you more traction, and that means more holeshots! - Cylinder Head Layout The CRF450R uses our latest finger-follower rocker design. The Unicam cylinder head remains the most efficient in the MX world, giving you the design and performance of a double-overhead-cam layout but the compactness of a single-overhead-cam design.