Engine Type 125cc liquid-cooled single-cylinder two-stroke with RC valve. Bore and Stroke 54.0mm x 54.5mm. Compression Ratio 8.6:1. Induction Six-petal crankcase reed-valve. Carburetion 38.0mm Mikuni TMX with throttle position sensor (TPS). Ignition Digital ignition with three-dimensional mapping and electronic advance. Transmission Close-ratio five-speed. Final Drive #520 chain; 13T/52T. Front Suspension 46.0mm inverted Kayaba cartridge fork with 18-position rebound and 20-position compression-damping adjustability; 12.0-inch travel. Rear Suspension Pro-Link Kayaba single-shock with spring-preload, 30-position rebound-damping adjustability, and compression-damping adjustment separated into low-speed (18 positions) and high-speed (2 turns); 12.5-inch travel. Front Brake Single 240.0mm disc with twin-piston caliper. Rear Brake Single 240.0mm disc. Front Tire 80/100-21. Rear Tire 100/90-19. Rake 25.75 degrees. Trail 100.0mm (3.94 inches). Wheelbase 57.9 inches. Seat Height 37.3 inches. Ground Clearance 13.8 inches. Dry Weight 197 pounds. Fuel Capacity 2.0 gallons.