Here's the latest info from Honda on the new 2011 CRF250R and CRF450R. This year looks like a bit of a refinement year, rather than wholesale revolution, but making the big CRFs better is always a chore. If you want to peek at more photos than you'll find below, check out the photo gallery.
2011 Honda CRF450R
Click the image below for a wallpaper-sized photo of the new 2011 Honda CRF450R. 1440 x 900 1400 x 1050 |
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
* Revised engine tuning and new 46mm throttle body increase low-end and midrange power and give improved throttle response.
* Front fork features a lighter cartridge cylinder and all-new valving for improved control and increased ride plushness.
* Revised shock valving yields improved control and increased rear wheel traction.
* New suspension linkage produces improved chassis balance and increased rear wheel traction in rough-track conditions.
* Honda Progressive Steering Damper (HPSD) features larger piston diameter (20mm to 24mm) for improved tracking traits.
* Redesigned muffler lowers sound emissions to 94 dB.
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° 54' |
Trail: | 114.5mm (4.5 inches) |
Seat Height: | 37.6 inches |
Ground Clearance: | 13.1 inches |
Fuel Capacity: | 1.5 gallons |
Color: | Red |
Curb Weight*: | TBD |
*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. |
2011 Honda CRF250R
Click the image below for a wallpaper-sized photo of the new 2011 Honda CRF450R. 1440 x 900 1400 x 1050 |
Despite winning numerous comparison tests and awards in 2010, the CRF250R enters the new season sporting a number of improvements that will help it continue its winning ways. A new Honda Progressive Steering Damper (HPSD) with a larger, 24mm damper piston aids tracking precision, and new suspension settings front and rear help give this stellar-handling machine even better chassis balance for 2011. Changes to engine tuning now give the CRF250R a stronger bottom-end and midrange hit, and this model also features a new muffler that meets the 94-decibel sound level required by some racing organizations in 2011.
New for 2011
* New engine tuning produces added response and midrange power production.
* Honda Progressive Steering Damper (HPSD) features larger piston diameter (20mm to 24mm) for improved tracking traits.
* Revised fork valving offers improved balance and bottoming resistance.
* New shock valving helps deliver optimum chassis balance and improved suspension action.
* Redesigned muffler lowers sound emissions to 94 dB.
Model: | CRF250R |
Engine Type: | 249cc liquid-cooled single-cylinder four-stroke |
Bore and Stroke: | 76.8mm x 53.8mm |
Compression ratio: | 13.2:1 |
Valve Train: | Unicam, four-valve; 30.5mm intake, titanium; 25mm exhaust, steel |
Induction: | PGM-FI, 50mm throttle body |
Ignition: | Full transistor with electronic advance |
Transmission: | Close-ratio five-speed |
Final Drive: | #520 chain; 13T/49T |
Suspension | Front: 48mm inverted Showa 16-position rebound and 16-position compression damping adjustability; 12.2 inches travel Rear: Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns); 12.5 inches travel |
Brakes | Front: Single 240mm disc with twin-piston caliper Rear: Single 240mm disc |
Tires | Front: Dunlop 742FA 80/100-21 Rear: Dunlop D756 100/90-19 |
Wheelbase: | 58.6 inches |
Rake (Caster Angle): | 27° 12' |
Trail: | 117mm (4.6 inches) |
Seat Height: | 37.6 inches |
Ground Clearance: | 12.8 inches |
Fuel Capacity: | 1.5 gallons |
Color: | Red |
Curb Weight*: | TBD |
*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. |
View replies to: 2011 Honda CRF250R and CRF450R
Comments