Honda Releases 2015 CRF450R Motocross Bike

2015 Honda CRF450R

2015 Honda CRF450R Motocross Motorcycle Revealed

Honda has released information on the 2015 Honda CRF450R motocross and supercross race bike.

The 2015 CRF450R is getting far more than a cosmetic upgrade this year, with the motor and suspension receiving major attention.

Leading the way in improvements are new KYB forks, a redesigned top end for the powerplant, programmable EFI, a shorter exhaust, larger front disc, and new Dunlop Geomax MX52 tires.

Here's a rundown of the improvements to the 2015 Honda CRF450R:

  • New cylinder head for more top-end power, plus added overrev.
  • New exhaust system with larger-diameter pipe and exhaust outlet for more top-end power.
  • Overall exhaust system length is shorter and closer to the bike’s center of mass for improved handling.
  • Revised ignition map settings and new settings for the Dual-Timing PGM-FI fuel injection.
  • Peak power hits earlier in the rev range and continues longer than before.
  • New piston is stronger due to a new heat-treatment process.
  • New Engine Mode Select button allows the rider to easily select one of three different EFI/ignition maps to match track conditions.
  • HRC accessory tuning tool can be used to program custom maps actuated by the Engine Mode Select button.
  • New ACG flywheel incorporates more mass for smooth power delivery and enhanced low-end response, and makes it less prone to stalling or flame out.
  • Transmission gears are stronger.
  • New throttle return spring has a lighter pull.
  • New clutch cable design gives a lighter pull at the lever.
  • New KYB Pneumatic Spring Fork (PSF) offers five ways to adjust performance: high-speed and low-speed adjusters for both rebound and compression damping settings, plus air-spring adjustability.
  • New fork damper cartridge and other changes in fork construction result in a weight savings of more than 7 ounces.
  • Rear shock adjuster for rebound damping settings is now located for more convenient access.
  • New front/rear wave-style rotors with a larger 260mm front brake disc add to overall braking performance.
  • New-generation Dunlop Geomax MX52 motocross tires front and rear offer improved traction in a wide variety of terrain.
  • Front brake guide and radiator grill now feature a black finish
  • New fork covers. - All-new CRF graphic.The price of the 2015 Honda CRF450R has yet to be determined, but the bike will be available in September of this year.

2015 Honda CRF450R Specifications

Model: CRF450R
Engine Type: 449cc liquid-cooled single-cylinder four-stroke
Bore and Stroke: 96.0mm x 62.1mm
Compression ratio: 12.5:1
Valve Train: Unicam, four-valve; 36mm intake, titanium; 31mm exhaust, steel

Dual-Timing PGM-FI, 46mm throttle body


Full transistor with electronic advance

Transmission: Close-ratio five-speed
Final Drive:

#520 chain; 13T/48T


Front: 48mm inverted KYB PSF (Pneumatic Spring Fork) with air-adjustable spring rate, and rebound and compression-damping adjustability; 12.2 inches travel.
Rear: Pro-Link KYB single shock with adjustable spring preload, rebound damping adjustability, and compression damping adjustment separated into low-speed and high-speed; 12.4 inches travel


Front: Single 260mm wave-style disc with twin-piston caliper
Rear: Single 240mm wave-style disc


Front: Dunlop MX52 80/100-21
Rear: Dunlop MX52 120/80-19


58.7 inches

Rake (Caster angle): 27° 04’

116mm (4.6 inches)

Seat Height:

37.5 inches

Ground Clearance: 13.0 inches
Fuel Capacity: 1.7 gallons
Color: Red
Curb Weight: 243 pounds


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