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General information
Model: Yamaha YZ450F
Year: 2017
Category: Cross / motocross
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Engine and transmission
Displacement: 449.70 ccm (27.44 cubic inches)
Engine type: Single cylinder, four-stroke
Engine details: Titanium-valves
Compression: 12.5:1
Bore x stroke: 97.0 x 60.8 mm (3.8 x 2.4 inches)
Valves per cylinder: 4
Fuel system: Injection. Yamaha Fuel Injection (YFI), Keihin 44mm
Fuel control: Double Overhead Cams/Twin Cam (DOHC)
Ignition: TCI: Transistor Controlled Ignition
Lubrication system: Wet sump
Cooling system: Liquid
Gearbox: 5-speed
Transmission type,
final drive:
Chain
Clutch: Wet multi-disc
Chassis, suspension, brakes and wheels
Frame type: Semi double cradle
Rake (fork angle): 28.0°
Front suspension: KYB Speed-Sensitive System, inverted fork: fully adjustable
Front wheel travel: 310 mm (12.2 inches)
Rear suspension: Monoshock, adjustable preload and rebound damping
Rear wheel travel: 315 mm (12.4 inches)
Front tyre: 80/100-21
Rear tyre: 120/80-19
Front brakes: Single disc. Hydraulic.
Front brakes diameter: 250 mm (9.8 inches)
Rear brakes: Single disc. Hydraulic.
Rear brakes diameter: 245 mm (9.6 inches)
Seat: Long, two-tone, motocross-style seat
Physical measures and capacities
Weight incl. oil, gas, etc: 111.1 kg (245.0 pounds)
Seat height: 975 mm (38.4 inches) If adjustable, lowest setting.
Overall height: 1,290 mm (50.8 inches)
Overall length: 2,174 mm (85.6 inches)
Overall width: 826 mm (32.5 inches)
Ground clearance: 335 mm (13.2 inches)
Wheelbase: 1,481 mm (58.3 inches)
Fuel capacity: 7.57 litres (2.00 gallons)
Other specifications
Color options: Blue/white
Starter: Electric