Yamaha WR450F (2009-10)

The Yamaha WR450F is a motorcycle that was produced in 2009 and 2010. It has a four-stroke, single-cylinder engine with a 449cc capacity and a compression ratio of 12.5:1. It also has a 39mm Keihin FCR flat-slide throttle position sensor and digital CDI ignition. The WR450F has an electric/kick-starter system and can produce a maximum power of 58 horsepower and 49 Nm of torque. The bike has a five-speed transmission and an “O” ring chain final drive. The WR450F has a single-cradle frame made of steel with a 46mm Kayaba inverted telescopic fork and a fully adjustable Kayaba single shock for the suspension. The front and rear brakes are both discs with 4 and 2 piston calipers, respectively. The bike has a ground clearance of 365mm, a wheelbase of 1485mm, and a dry weight of 112.5kg. Its fuel capacity is 8 liters.

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Technical specifications:

Make Model: Yamaha WR 450F

Year: 2009 – 10

Engine: Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder.

Capacity: 449 cc / 27.4 in

Bore x Stroke: 95 x 63.4 mm

Cooling System: Liquid cooled

Compression Ratio: 12.5:1

Lubrication: Wet Sump

Induction: 39mm Keihin FCR flat-slide throttle position sensor

Ignition: Digital CDI

Starting: Electric / Kick-starter

Max Power: 58 hp / 42.3 kW @ 9000 rpm

Max Torque: 49 Nm / 33.1 lb-ft @ 7000 rpm

Clutch: Wet, multiple discs, cable operated

Transmission: 5 Speed

Final Drive: “O” ring Chain

Frame: Steel, Single cradle frame

Front Suspension: 46mm Kayaba inverted telescopic fork, compression and rebound damping adjustable

Front Wheel Travel: 300 mm / 11.8 in

Rear Suspension: Fully adjustable Kayaba single shock, 315mm wheel travel, separate speed compression adjustment

Rear Wheel Travel: 318 mm / 12.4 in

Front Brakes: Single 250mm disc 4 piston caliper

Rear Brakes: Single 245mm disc 2-piston caliper

Front Tyre: 80/100-21

Rear Tyre: 110/100-18

Dimensions: Length 2175 mm / 85.6 in Width 825 mm / 32.5 in Height 1300 mm / 51.2 in

Wheelbase: 1485 mm / 58.5 in

Ground Clearance: 365 mm / 14.3 in

Seat Height: 998 mm / 39.3 in

Dry Weight: 112.5 kg / 248 lbs

Wet Weight: 122 kg / 268 lbs

Fuel Capacity: 8 Liters / 2.1 US gal