General Specifications For Your 2009 – 2010 Honda CRF450R Dirt Bike
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’09-’10 CRF450R Dimensions | |
| Overall Length | |
| – 2009 | 2,193mm (86.3in) |
| – After 2009 | 2,191mm (86.3in) |
| Overall Width | 827mm (32.6in) |
| Overall Height | |
| – 2009 | 1,278mm (50.3in) |
| – After 2009 | 1,273mm (50.1) |
| Wheelbase | |
| – 2009 | 1,493mm (58.8in) |
| – After 2009 | 1,491mm (58.7in) |
| Seat Height | |
| – 2009 | |
| – After 2009 | |
| Footpeg Height | |
| – 2009 | 428mm (16.9in) |
| – After 2009 | 424mm (16.7in) |
| Ground Clearance | |
| – 2009 | 336mm (13.2in) |
| – After 2009 | 332mm (13.1in) |
’09-’10 CRF450R Frame | |
| Frame Type | Twin-tube |
| Front Suspension | Telescopic fork |
| Front Suspension Axle travel | 273mm (10.7) |
| Front Suspension Cushion Stroke | 310mm (12.2in) |
| Rear Suspension | Pro-Link |
| Rear Wheel Travel | 320m (12.6in) |
| Rear Damper | Decarbon type with nitrogen gas-filled damper |
| Front tire Size | 80/100-21 51M |
| Rear Tire Size | 120/80-19 63M |
| Tire Brand (Dunlop) | Front: D742FA – Rear: D756 |
| Front Brake | Hydraulic single disc |
| Front Brake Swept Area | 334.5 cm2 (51.8in2) |
| Rear Brake | Hydraulic single disc |
| Rear Brake Swept Area | 391.1 cm2 (60.6in2) |
| Caster Angle | |
| – 2009 | 27° 3′ |
| – After 2009 | 26° 52′ |
| Trail Length | |
| – 2009 | 115.6mm (4.55in) |
| – After 2009 | 114.2mm (4.50in) |
| Fuel Tank Capacity | 5.7 liter (1.51 Us gallon, 1.25 Imp gallon) |
’09-’10 CRF450R Engine | |
| Bore And Stroke | 96.0 x 62.1mm (3.78 x 2.44in) |
| Displacement | 49.7 cm3 (27.43 cu-in) |
| Compression Ratio | 12.0:1 |
| Valve Train | Chain drive and OHC with rocker arm |
| Intake Valve | |
| Opens at 1.0mm (0.04in) Lift | 15° BTDC |
| Closes at 1.0mm (0.04in) Lift | 50° ABDC |
| Exhaust Valve | |
| Opens at 1.0mm (0.04in) Lift | 55° BBDC |
| Closes at 1.0mm (0.04in) Lift | 15° ATDC |
| Lubrication | Forced pressure and wet sump |
| Oil Pump Type | Trochoid |
| Cooling System | Liquid Cooled |
| Air Filtration | Oiled polyurethane foam |
| Crankshaft Type | Assembled type |
| Engine Dry Weight | 27.1kg (59.7lbs) |
| Cylinder Arrangement | Single cylinder, inclined 6° 30′ from vertical |
’09-’10 CRF450R Fuel Delivery System | |
| Type | PGM-FI |
| Throttle Bore | 50mm (2.0in) |
’09-’10 CRF450R Drive Train | |
| Clutch System | Multi-plate, wet – (Shop Clutches) |
| Clutch Operation system | Cable-operated |
| Transmission | Constant-mesh, 5-speed |
| Primary Reduction | 2.739 (63/23) |
| Final Reduction | 3.692 (48/13) |
| Gear Ratio | |
| 1st | 1.800 (27/15) |
| 2nd | 1.470 (25/17) |
| 3rd | 1.235 (21/17) |
| 4th | 1.050 (21/20) |
| 5th | 0.909 (2022) |
| Gearshift Pattern | Left foot operated return system, 1-N-2-3-4-5 |
’09-’10 CRF450R Electrical | |
| Ignition System | Computer-controlled digital transistorized with electric advance |
| Charging System | Single-phase output alternator |
| Regulator/Rectifier | SCR shorted/single phase, full-wave rectification |
Keep Your ’09-’10 CRF450r Running Right!
