All-new lighter engine. Spins faster, up to 11,450 rpm, pumping out 56.3 bhp at 8500 rpm and 37.5 lb/ft. of torque at 7000 rpm.
Programmed Fuel Injection (PGM-FI) - utilizes a 50mm throttle body design with 12-hole injection nozzle fed by lightweight 50-psi pump to ensure optimum fuel atomization and precisely targeted fuel charge. System also achieves an improvement in fuel consumption.
PGM-FI system monitors throttle position, intake air and coolant temperatures, air pressure and gear position to accurately map fuel charge and ignition spark, significantly improving partial-throttle response and helping assure excellent rideability.
All-new fifth-generation aluminum frame with forged-aluminum steering head is now 14 ounces lighter than previous design. Spar height was reduced (70 to 66mm) and width was narrowed (27 to 26mm). Stronger downtubes improve front-end feel.
Kayaba front and rear suspension.
Innovative exhaust system - incorporates a left-side cylinder head exhaust port, increasing header length and allows muffler to be positioned closer to center of mass, contributing to significantly improved weight distribution and handling.
Honda Progressive Steering Damper (HPSD) revalved for more linear damping. HPSD features a compact damper attached to the lower triple clamp and the steering head to allow more aggressive steering characteristics and assist straight-line handling. Damping action smoothly progresses as handlebar deflection increases, which produces very natural steering characteristics and feel.
Pro-Link Rear Suspension features exclusive Kayaba integrated reservoir with all-new damping and spring settings.
HRC works-style rear brake system integrates the rear master cylinder and fluid reservoir, eliminating the separate reservoir and hose.
Engine stop switch features an integrated LED pre-ride check indicator with EFI diagnostic capability to ensure CRF450R is operating at maximum capacity.
2009 CRF450R Specifications
Model: 2009 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: Programmed Fuel Injection (PGM-FI), 50mm throttle body
Ignition: Full Transistor with three-gear-position electronic advance
Transmission: Close-ratio five-speed
Final Drive: #520 chain; 13T/48T
Front: 48mm inverted Kayaba Air-Oil-Separate (AOS) with 16-position rebound and 18-position compression damping adjustability; 12.2 inches travel
Rear: Pro-Link Kayaba single shock with spring preload, 20-position rebound damping adjustability, and compression damping adjustment separated into low-speed (18 positions) and high-speed (1-1/2 turns); 12.6 inches travel
Front: Single 240mm disc with twin-piston caliper
Rear: Single 240mm disc
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
Curb Weight*: 234.8 pounds
*Includes all standard equipment, required fluids and full tank of fuel-ready to ride Consult owner's manual for optional parts.
HRC PGM-FI Setting Tool
Honda also has available an HRC PGM-FI Setting Tool, which allows CRF450R owners to alter EFI fuel delivery as well as ignition timing over a wide range of settings to alter engine power characteristics
Ну, блин! Как паталогоанатом.........