Honda CRF450R 2006
Motocross / Racing
449cc
4-stroke
55.0hp
Power
218.5lb
Dry weight
37.6in
Seat height
12.4in
Front travel
2006 Honda CRF450R overview
The 2006 Honda CRF450R is a motocross racing bike with a carbureted, liquid-cooled 449cc four-stroke single, SOHC four-valve head and five-speed transmission. It has a kickstarter, an aluminum perimeter frame, 12.4 in of front suspension travel and 12.5 in at the rear. New for 2006, the engine tilts forward with the crankshaft 5 mm lower, the radiators sit 5 mm lower, and the water-pump impeller, intake valve seats and carburetor needle are new. The updates also include lighter fork outer tubes, a lighter front hub, new suspension valving and revised exhaust placement. The CRF450R has a 1.9 gal fuel capacity, a 37.6 in seat height and a dry weight of 218.5 lb. Its US MSRP was $6,899.
Who it's for
This motocross-focused bike suits racers and experienced riders who want a high-output 450cc machine for track use. Its 55 hp engine, kick start and 37.6 in seat height call for confident bike handling and the ability to manage a tall, powerful motocross motorcycle. It is a fit for riders practicing motos or lining up for races, rather than beginners looking for a forgiving first dirt bike or riders seeking a street-legal machine.
Quick facts
- The 2006 Honda CRF450R has a 449cc carbureted 4-stroke engine, a 5-speed gearbox and kick start.
- The 2006 CRF450R weighs 218.5 lb dry and has a 37.6 in seat height.
- The 2006 CRF450R runs 80/100-21 front and 110/90-19 rear tires.
- The 2006 CRF450R takes 0.7 US qt (0.66 L) of 10W-40 engine oil; change it every 6 races or about 15 hours.
- The 2006 CRF450R lists at $6,899 (US MSRP). It is not street legal in the US.
2006 Honda CRF450R specifications
Engine
- Displacement
- 449cc
- Stroke
- 4-stroke
- Fuel system
- Carburetor
- Bore × stroke
- 96 × 62.1 mm
- Compression
- 12.0:1
- Horsepower
- 55.0 hp
- Torque
- 36.9 ft-lb
- Cooling
- Liquid
- Configuration
- Single-cylinder
- Valve train
- SOHC
- Valves
- 4
- Engine oil
- 0.7 US qt (0.66 L)
- Oil type
- 10W-40
- Gearbox oil
- 0.6 US qt (0.59 L)
- Gearbox oil type
- Pro Honda HP Trans, GN4 or HP4 4-stroke oil, SAE 10W-40
- Coolant
- 1.1 US qt (1.03 L)
Clutch
- Type
- Wet multiplate
- Actuation
- Cable
Drivetrain
- Starting
- Kick
- Transmission
- 5-speed
- Chain size
- 520
- Chain links
- 114
- Front sprocket
- 13T
- Rear sprocket
- 48T
Dimensions
- Dry weight
- 218.5 lb
- Seat height
- 37.6″
- Ground clearance
- 13.4″
- Wheelbase
- 58.7″
- Width
- 32.5″
- Height
- 49.7″
- Length
- 86.3″
- Fuel capacity
- 1.9 gal
Price & warranty
- Colors
- Red
Frame & steering
- Frame material
- Aluminum
- Architecture
- Perimeter
- Rake
- 26.8°
- Trail
- 4.3″
Suspension
- Front
- 47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability
- Front travel
- 12.4″
- 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)
- Rear travel
- 12.5″
Wheels & tires
- Front wheel
- 21″
- Rear wheel
- 19″
- Front tire
- 80/100-21 51M Dunlop D742F
- Rear tire
- 110/90-19 62M Dunlop D756
Brakes
- Front disc
- 240 mm
- Rear disc
- 240 mm
Stock features
- Street legal (US)
- No
Battery / electrical
- Battery
- No
2006 Honda CRF450R maintenance
From the maker's manuals. Tap a row to see the manual page.
Service intervals
- Change engine oil (first time)
- After the first break-in ride
- Change engine oil
- Every 6 races or about 15 hours
- Replace oil filter (first time)
- After the first break-in ride
- Replace oil filter
- Every 6 races or about 15 hours
- Change gearbox oil
- Every 6 races or about 15 hours
- Clean air filter
- Every race or about 2.5 hours
- Clean air filter
- Every moto (dusty riding condition)
- Inspect spark plug
- Every race or about 2.5 hours
- Replace piston and rings
- Every 6 races or about 15 hours
Spark plug
- Spark plug
- NGK IFR8H11
- Plug gap
- 0.039 – 0.043 in (1.0 – 1.1 mm)
- Spark plug (alternative)
- DENSO VK24PRZ11
- Spark plug (optional)
- NGK IFR9H11
- Spark plug (optional, alternative)
- DENSO VK27PRZ11
Torque specs
- Oil drain bolt
- 12 ft‑lb (16 N·m, 1.6 kgf·m)
- Oil filter cover bolts
- 8.9 ft‑lb (12 N·m, 1.2 kgf·m)
- Gearbox oil drain plug
- 16 ft‑lb (22 N·m, 2.2 kgf·m)
- Front axle nut
- 65 ft‑lb (88 N·m, 9.0 kgf·m)
- Front axle pinch bolts
- 15 ft‑lb (20 N·m, 2.0 kgf·m)
- Rear axle nut
- 94 ft‑lb (128 N·m, 13.1 kgf·m)
- Upper triple clamp bolts
- 16 ft‑lb (22 N·m, 2.2 kgf·m)
- Lower triple clamp bolts
- 15 ft‑lb (20 N·m, 2.0 kgf·m)
- Steering stem nut
- 80 ft‑lb (108 N·m, 11.0 kgf·m)
- Handlebar clamp bolts
- 16 ft‑lb (22 N·m, 2.2 kgf·m)
- Front brake caliper mounting bolts
- 22 ft‑lb (30 N·m, 3.1 kgf·m)
- Front brake disc nuts
- 12 ft‑lb (16 N·m, 1.6 kgf·m)
- Rear brake disc nuts
- 12 ft‑lb (16 N·m, 1.6 kgf·m)
- Rear sprocket nuts
- 24 ft‑lb (32 N·m, 3.3 kgf·m)
- Front sprocket bolt
- 23 ft‑lb (31 N·m, 3.2 kgf·m)
- Chain adjuster locknut
- 20 ft‑lb (27 N·m, 2.8 kgf·m)
- Shock absorber mounting bolts
- 32 ft‑lb (44 N·m, 4.5 kgf·m)
2006 Honda CRF450R vs 2005
New for 2006: The engine tilted forward with the crankshaft 5mm lower, radiators 5mm lower, a new water-pump impeller, new intake valve seats and carburetor needle, lighter fork outer tubes, a lighter front hub and new suspension valving. Of the specs below, only the price changed: it has a $200 higher MSRP than the 2005 model.
| Spec | 2005 | 2006 | Changed |
|---|---|---|---|
| MSRP | $6,699 | $6,899 | New |
| Displacement | 449cc | Same | |
| Power | 55.0 hp | Same | |
| Dry weight | 218.5 lb | Same | |
| Seat height | 37.6 in | Same | |
| Front travel | 12.4 in | Same | |
| Rear travel | 12.5 in | Same | |
| Fuel | 1.9 gal | Same | |
| Gearbox | 5-speed | Same | |
| Front tire | 80/100-21 | Same | |
| Rear tire | 110/90-19 | Same |
2006 Honda CRF450R photos
Honda CRF450R FAQ
How much horsepower does the 2006 Honda CRF450R make?
The 2006 Honda CRF450R produces 55 hp and 36.9 ft-lb of torque.
What engine does the 2006 Honda CRF450R have?
It has a carbureted, liquid-cooled 449cc four-stroke single-cylinder engine with a SOHC four-valve layout.
What is the seat height of the 2006 Honda CRF450R?
The seat height is 37.6 in.
How much does the 2006 Honda CRF450R weigh?
Its dry weight is 218.5 lb.
How much suspension travel does the 2006 Honda CRF450R have?
It has 12.4 in of front travel and 12.5 in of rear travel.
How much fuel does the 2006 Honda CRF450R hold?
The fuel capacity is 1.9 gal.
What engine oil does the 2006 Honda CRF450R use?
It uses 10W-40 engine oil, with an engine oil capacity of 0.7 US qt (0.66 L).
Is the 2006 Honda CRF450R street legal?
It is not street legal in the US.
What was the MSRP of the 2006 Honda CRF450R?
The US MSRP was $6,899.
What size tires does the 2006 Honda CRF450R use?
80/100-21 front and 110/90-19 rear.
What spark plug does the 2006 Honda CRF450R take?
NGK IFR8H11, gapped 0.039 – 0.043 in (1.0 – 1.1 mm).
What chain and sprockets does the 2006 Honda CRF450R use?
A 520 chain with 114 links on a 13-tooth front and 48-tooth rear sprocket.
Is the 2006 Honda CRF450R different from the 2005 model?
Yes. New for 2006: engine cases that tilt the engine forward and lower the crankshaft 5mm, radiators 5mm lower, a new water-pump impeller, new intake valve seats and carburetor needle, lighter fork outer tubes, a new exhaust placement, a lighter front hub and new suspension valving. Among the main specs, only the price changed: it has a $200 higher MSRP than the 2005 model.
Other Honda CRF450R model years
Specs from Honda's owner's manual and Honda's website. Updated .