Long regarded as the bike of choice in the big-bore motocross division, the 2011 CRF450R incorporates improvements that will help this bike retain its premier standing. The prodigious powerband is now even stronger thanks to more low-end pull and midrange grunt along with enhanced throttle response via a new throttle body. Revised suspension linkage and settings yield improved control, increased ride plushness and enhanced rear-wheel traction. A new Honda Progressive Steering Damper (HPSD) produces even better tracking traits than before, and a new muffler meets the 94-decibel sound level required by some racing organizations in 2011. All this and more make the 2011 CRF450R a shoo-in to maintain its dominant role among open-class MX bikes.
New for 2011
| Model: | CRF450R |
| Engine Type: | 449cc liquid-cooled single-cylinder four-stroke |
| Bore and Stroke: | 96mm x 62.1mm |
| Compression ratio: | 12.0:1 |
| Valve Train: | Unicam, four-valve; 36mm intake, titanium; 30mm exhaust, steel |
| Induction: | PGM-FI, 50mm throttle body |
| Ignition: | Full transistor with electronic advance |
| Transmission: | Close-ratio five-speed |
| Final Drive: | #520 chain; 13T/48T |
| Suspension | Front: 48mm inverted KYB Air-Oil-Separate (AOS) with rebound and compression damping adjustability; 12.2 inches travel Rear: Pro-Link KYB single shock with spring preload, rebound damping adjustability, and compression damping adjustment separated into low-speed and high-speed; 12.5 inches travel |
| Brakes | Front: Single 240mm disc with twin-piston caliper Rear: Single 240mm disc |
| Tires | Front: 80/100-21 Rear: 120/80-19 |
| Wheelbase: | 58.7 inches |
| Rake (Caster angle): | 26° 52′ |
| Trail: | 114.2mm (4.5 inches) |
| Seat Height: | 37.6 inches |
| Ground Clearance: | 13.1 inches |
| Fuel Capacity: | 1.5 gallons |
| Color: | Red |
| Curb Weight*: | 238 lbs |
| *Includes all standard equipment, required fluids and full tank of fuel–ready to ride.
Consult owner’s manual for optional parts. Specifications are preliminary and subject to change. |
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