The 2018 RM-Z450 is poised to be an even more formidable competitor.
Begin Press Release:

Suzuki Announces All-new 2018 RM-Z450
Advances the Standard for Motocross Handling & Style to a New Level
Brea, CA (June 28, 2017) ? Key New Advancements on the 2018 RM-Z450

Increased Engine Performance
Improved Throttle Response with Higher Peak Power
Evolved Traction Management System Helps the Bike Hook Up
Updated Suzuki Holeshot Assist Control (S-HAC) Gets You Out Front

Advanced Cornering Performance

New Frame and Swingarm are Lighter with Excellent Strength
Refined Chassis Dimensions Blend Nimble Handling with Stability
Improved Coil-spring Fork Provides Great Performance and Easy Tuning
New Showa BFRC Rear Shock Delivers Remarkable Damping Response Bridgestone X30 Tires bring Outstanding Grip

Improved Braking Performance

Larger Front Brake Increases Stopping Power and Feel
New, Compact Rear Master Cylinder is out of the Way of Mud and Boots

Functional Styling

Aggressive New Styling Blends Function with Suzuki Racing Identity
Narrow Cockpit Lets Rider Move with Ease for Maximum Racing Performance

Developed using Suzuki?s RUN, TURN, and STOP philosophy that creates a Winning Balance between engine and chassis performance, the 2018 RM-Z450 has stronger brakes for better stopping power, a wider spread of engine muscle with higher peak power, and a frame that is stronger and lighter resulting in a nimble chassis that elevates the standard for cornering perform...