2015 Honda CRF450R - First Look

Lots of changes (and more power!) for Honda’s motocrosser.

We've lost track of how many Ten Best awards the Honda CRF450R has taken home, but the last few years have seen the competition walk away with the coveted hardware. That, together with a lack of success on the racetrack, has obviously gotten under Big Red's skin.

For 2015, the CRF450R receives numerous upgrades that address the bike's previous deficiencies. Equally interesting, Honda is introducing an industry-first (for motocross) Ride Mode Select button. Modes can be selected via a right-handlebar-mounted button, allowing the rider to choose among three EFI/ignition options. Additionally, custom maps can be created using the HRC accessory tuning tool and accessed in the same manner.

On the hardware side, the 2015 Honda CRF450R has a new cylinder head and piston, plus an exhaust with a larger-diameter pipe and silencer outlet. Revised EFI/ignition settings are aimed at better top-end performance and more overrev. Also, a new flywheel with more mass should make for smoother power delivery and better bottom-end response. Improving rider interface are a lighter throttle-return spring and a clutch requiring less effort at the bar.

At the front, a brand-new KYB Pneumatic Spring Fork (PSF) has provisions for high- and low-speed rebound and compression damping, plus air-spring adjustability. Out back, the shock’s rebound adjuster has been made more accessible to simplify changes. Completing the changes are a larger 260mm wave-style front brake disc (and rear of the same design), which should improve power and feel, while the latest Dunlop Geomax MX52 tires are fitted as standard.

Is this enough to make the CRF450F start winning awards and races again? Only time will tell.

SPECIFICATIONS
|2015 Honda CRF450R
ENGINE TYPE|449cc liquid-cooled single, four-stroke
BORE & STROKE|96.0mm x 62.1mm
COMPRESSION RATIO|12.5:1
VALVE TRAIN|Unicam, four-valve; 36mm intake, titanium; 31mm exhaust, steel
INDUCTION|Dual-Timing PGM-FI, 46mm throttle body
IGNITION|Full transistor with electronic advance
TRANSMISSION|Close-ratio five-speed
FINAL DRIVE|#520 chain; 13T/48T
FRONT SUSPENSION|48mm inverted KYB PSF (Pneumatic Spring Fork) with air-adjustable spring rate, and rebound and compression-damping adjustability; 12.2 in. travel
REAR SUSPENSION|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 in. travel
FRONT BRAKE|260mm wave-style disc, dual-piston caliper
REAR BRAKE|240mm wave-style disc, single-piston caliper
FRONT TIRE|Dunlop MX52 80/100-21
REAR TIRE|Dunlop MX52 120/80-19
WHEELBASE|58.7 in.
RAKE (CASTER ANGLE)|27° 04’
TRAIL|4.6 in.
SEAT HEIGHT|37.5 in.
GROUND CLEARANCE|13.0 in.
FUEL CAPACITY|1.7 gal.
COLOR|Red
CLAIMED WET WEIGHT|243 lb.

Studio front 3/4 left-side view.

Studio right-side view.

Ride Mode Select button.

Front fork damping.

Rear shock damping.