ENGINE DESIGN 1-cylinder, 4-stroke engine DISPLACEMENT 449.3 cm³ BORE 95 mm STROKE 63.4 mm STARTER Electric starter TRANSMISSION 6-speed PRIMARY DRIVE 31:76 SECONDARY GEAR RATIO 14:52 CLUTCH Wet, DDS multi-disc clutch, Brembo hydraulics EMS Keihin EMS CHASSIS FRAME DESIGN Chrome-molybdenum steel central-tube frame FRONT SUSPENSION WP-USD Xplor 48 with preload adjuster REAR SUSPENSION WP Xplor PDS shock absorber SUSPENSION TRAVEL … Continue a ler 450 EXC-F SIX DAYS