Make ModelHonda CRF450X
Full Model Name2011 Honda CRF 450 X
EngineLiquid cooled, 4-stroke, 1 cylinder, SOHC, 4 valves
Bore x Stroke96mm x 62.1mm
Compression Ratio12:1
InductionType: Carburator; Bore size: Ø 40mm
StartingKick-starter & Electric Start
Max Power36.5KW (48.95hp) @ 7,500RPM
Transmission / Drive5 Speeds / Chain
Front SuspensionØ 47mm forks, 315mm (12.4″) wheel travel
Rear SuspensionRo-Link Showa single shock with adjustable spring preload, 17-position rebound damping adjustability and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns), 313mm (12.32″) wheel travel
Front BrakesType: Disc 1 disc, Ø 240mm, 2 piston calipers
Rear BrakesType: Disc 1 disc, Ø 240mm, 1 piston caliper
Front Wheel80/100-21 DUNLOP D742FA
Rear Wheel110/100-18 DUNLOP D756
Seat Height963mm (37.9″)
Dry Weight105kg (231.49lb)
Fuel Capacity7.2L (1.9gal.)
Top Speed128.75km/h (80mph)
Idle Speed RPM1,700+/-100
Bike2011 Honda CRF450X
Standard Maintenance Interval965.61km (600mi)
Break-in Interval160.93km (100mi)
Engine Oil Change Interval965.61km (600mi)
Transmission Oil Change Interval600km (372.82mi)
Initial Valve Check160.93km (100mi)
Periodic Valve Check965.61km (600mi)
Engine Oil Capacity With Filter Change0.7L (0.185gal.)
More on Engine OilPro Honda GN4 4-stroke oil engine. SAE 10W-30/SAE 10W-40
Transmission Oil0.65L (0.172gal.)
Idle Speed RPM1,700 +/- 100
Coolant Capacity1.45L (0.383gal.) or 1.21L (0.32gal.) at draining
SparksNGK IFR8H11
Spark Plug Gap1 – 1.1mm
Final DriveType: Chain 520 DID520MXV Final Drive Ratio: 13 / 51
Fork OilLevel: 45mm (1.77″) Capacity: 350cc +/- 42cc
Front Wheel80/100-21 DUNLOP D742FA
Front Wheel Pressure (solo/dual riding)15psi (1.03bar, 103.42kPa)
Rear Wheel110/100-18 DUNLOP D756
Rear Wheel Pressure (solo/dual riding)15psi (1.03bar, 103.42kPa)
Headlight12V-35W Halogen /35W
Valve ClearanceIN: 0.16mm +/- 0.03mm EX: 0.28mm +/- 0.03mm
Throttle Grip Free Play3 (0.12) – 5mm (0.2″)
Clutch Lever Free Play10 (0.39) – 20mm (0.79″)
Drive Chain Slack25 (0.98) – 35mm (1.38″)
Engine Oil Drain Bolt Torque16N·m (11.8ft·lbf)
Engine Oil Filter Torque10N·m (7.38ft·lbf)
Front Axle Pinch Bolt Torque20N·m (14.75ft·lbf)
Front Axle Bolt Torque88N·m (64.91ft·lbf)
Front Brake Disc Bolt Torque16N·m (11.8ft·lbf)
Front Brake Caliper Mounting Bolt Torque30N·m (22.13ft·lbf)
Rear Axle Bolt Torque128N·m (94.41ft·lbf)
Rear Brake Disc Bolt Torque16N·m (11.8ft·lbf)
Drive Sprocket Bolt/Nut Torque31N·m (22.86ft·lbf)
Driven Sprocket Bolt/Nut Torque32N·m (23.6ft·lbf)