WR450F 
Based on the MXGP World Championship winning YZ450F, the WR450F employs Yamaha’s innovative reverse cylinder head and rearwards slanting cylinder. Having convincingly demonstrated its winning performance at the highest level, this industry-leading engine design offers high levels of controllable and linear torque, while this design’s greater mass centralisation contributes towards the bike’s agile handling character.
Together with the compact and light-handling YZ-F based chassis, the WR450F delivers major improvements in terms of weight, power characteristic, agility and rideability.
Engine Type: Liquid-cooled, 4-stroke, DOHC, 4-valve
Displacement (cc): 449.0
Bore x Stroke (mm): 97.0 x 60.8
Compression Ratio: 12.5 : 1
Lubrication System: Wet sump
Fuel Management: Fuel Injection
Ignition: TCI
Starter System: Electric
Fuel Tank Capacity (L): 7.5
Final Transmission: Chain
Transmission: Constant mesh 5-speed
Frame Type: Bilateral beam
Suspension Front: Telescopic forks, 310mm travel
Suspension Rear: Swingarm (link suspension), 318mm travel
Brakes Front: Hydraulic single disc, 270mm
Brakes Rear: Hydraulic single disc, 245mm
Tyres Front: 90/90/21 54M M+S Tube type
Tyres Rear: 130/90-18 69M+S Tube type
Length (mm): 2165
Width (mm): 825
Height (mm): 1280
Seat Height (mm): 965
Wheelbase (mm): 1465
Ground Clearance (mm): 325
Wet Weight (kg): 123
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