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2006 Honda CRF 450X Specifications

Enduro / Off-Road • Specs last verified 13 July 2026

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2006 Honda CRF 450X Overview

For 2006, Honda offers the CRF 450X as an enduro / off-road motorcycle with 449 cc on tap. The 2006 Honda CRF 450X is built around a Single cylinder engine running SOHC valve actuation, a compression ratio of 12.0:1. Internally, bore and stroke are 96 x 62 mm. In everyday use, the 2006 CRF 450X tips the scales at 113.4 kg, carries a 8.59-litre fuel tank, offers a seat height of 963 mm and spans a 1,478 mm wheelbase. That's roughly 85.4 kg lighter than the average enduro / off-road motorcycle in our database. Every technical detail, from suspension travel to tyre sizes, is covered in the full 2006 Honda CRF 450X spec sheet below.

2006 CRF 450X - Pros & Cons

Strengths

  • Factory engineering: There's nothing exotic about the 2006 Honda CRF 450X's spec sheet - just solid, proven engineering for what it's meant to do.

Considerations

  • Carburetor fuelling: Carburetion is more hands-on than fuel injection - plan on periodic jetting and cleaning as part of routine ownership.
  • Tall seat height: A 963 mm seat puts flat-footing out of reach for a lot of riders - sit on it in person before committing.
  • Modest fuel capacity: A 8.59-litre tank keeps things light but means budgeting for more frequent fuel stops on any longer ride.
  • Chain final drive upkeep: A chain drivetrain is the most common setup in its class, but it's also the one that demands the most regular hands-on maintenance.

Wear Points & Servicing Notes

Carburetor maintenance

Being carbureted, the CRF 450X is more sensitive to stale fuel and altitude changes than a fuel-injected bike - a carb clean and rejet restores crisp throttle response after any extended lay-up.

Valve clearance checks

Valve clearances on SOHC-equipped engines like the CRF 450X's drift slowly with mileage rather than failing suddenly - sticking to the service interval keeps it a non-issue.

Brake disc and pad wear

Single disc up front provides the primary stopping power; inspect disc thickness and pad wear at each tyre change to catch scoring before it becomes a rotor replacement.

Suspension condition on used examples

Suspension duties are handled by 47.0mm inverted Showa cartridge fork with 16-position rebound- and 16-position compression-damping adjustability up front and Pro-Link Showa single shock with adjustable spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low speed at the rear. Weeping fork seals aren't a dealbreaker on a used bike, but they're a fair basis for negotiating price.

Final drive maintenance

Chain final drive on the CRF 450X means routine lubing and tension checks are part of ownership - skip them and sprocket wear accelerates noticeably.

Low-speed handling

The CRF 450X's 113.4 kg kerb weight makes low-speed control noticeably less effort than on a heavier machine.

CRF 450X - Buying & Maintenance Guide

What to check before buying

A pre-purchase check on the 2006 Honda CRF 450X should cover the same ground every time: service history, chain and sprocket condition, and any oil seepage around the casings. Start it from cold if you can - a well-kept CRF 450X settles to a smooth idle within seconds.

Oil and filter changes

Oil changes are the cheapest insurance you can buy for a CRF 450X's engine - keep to the manufacturer's interval rather than stretching it. Use the viscosity grade the manual specifies, not whatever's on sale.

Carburetor upkeep

A CRF 450X that's sat unused is almost always a carb-cleaning job before it runs right again - float bowls and pilot jets first, since they clog before anything else.

Valve clearance service

There's no reliable seat-of-the-pants way to tell if a CRF 450X's valve clearances are in spec - a light top-end tick is the only real warning sign, and by then some wear has already happened. Service records are the only proof.

2006 Honda CRF 450X - Frequently Asked Questions

What engine does the 2006 Honda CRF 450X have?
The 2006 Honda CRF 450X uses a Single cylinder engine with 449 cc of displacement.
How much does the 2006 Honda CRF 450X weigh?
The 2006 Honda CRF 450X weighs 113.4 kg. This is the manufacturer's dry figure.
What is the fuel tank capacity of the 2006 Honda CRF 450X?
The 2006 Honda CRF 450X has a 8.59-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 143-171 km between stops.
Is the 2006 Honda CRF 450X suitable for shorter riders?
The 2006 Honda CRF 450X has a seat height of 963 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.
What brakes does the 2006 Honda CRF 450X have?
The 2006 Honda CRF 450X uses Single disc at the front and Single disc at the rear.
What tyre sizes does the 2006 Honda CRF 450X use?
The 2006 Honda CRF 450X runs 80/70-21 front and 110/90-18 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What fuel system does the 2006 Honda CRF 450X use?
The 2006 Honda CRF 450X uses Carburettor. Keihin 40.0mm flat-slide with throttle position sensor (TPS), providing precise fuelling across the rev range and reliable cold-start behaviour.

Honda CRF 450X Spec Evolution

The Honda CRF 450X was produced across 17 model years (2005-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification 2005 2006 2007 2008 2009 2010 2011 2012 2014 2016 2017 2018 2019 2020 2021 2022 2023
Wet Weight - - - - 122.0 kg / 269.0 lbs 122.0 kg / 269.0 lbs 122.0 kg / 269.0 lbs 122.0 kg / 269.0 lbs 122 kg / 269 lbs 122 kg / 269 lbs 122.0 kg / 269.0 lbs 122.0 kg / 269.0 lbs 122.0 kg / 269.0 lbs 124.7 kg / 275.0 lbs 124.7 kg / 275.0 lbs 124.7 kg / 275.0 lbs 124.7 kg / 275.0 lbs
Dry Weight 99.1 kg / 218.5 lbs 113.4 kg / 250.0 lbs 113.4 kg / 250.0 lbs 122 kg / 269.0 lbs - - - 88 kg / 194.0 lbs - - - - - - - - -
Engine Detail - - - - - - - Unicam&reg, four-valve, 35mm intake valve, 30mm exhaust valve Four stroke, single cylinder, DOHC, 4 valves Titanium Intake Valves Titanium Intake Valves 35mm intake valve, 30mm exhaust valve 35mm intake valve, 30mm exhaust valve 35mm intake valve, 30mm exhaust valve - - -
Engine Type Single cylinder Single cylinder Single cylinder Single cylinder Single cylinder Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke Single cylinder, four-stroke
Seat Height 955 mm / 37.6 in. 963 mm / 37.9 in. 963 mm / 37.9 in. 963 mm / 37.9 in. 963 mm / 37.9 in. 963 mm / 37.9 in. 963 mm / 37.9 in. 963 mm / 37.9 in. 963 mm / 37.9 in 963 mm / 37.9 in 963 mm / 37.9 in. 963 mm / 37.9 in. 963 mm / 37.9 in. 950 mm / 37.4 in. 963 mm / 37.9 in. 963 mm / 37.9 in. 963 mm / 37.9 in.
Fuel Capacity 7.19 litres / 1.90 gallons 8.59 litres / 2.27 gallons - 7.19 litres / 1.90 gallons 7.19 litres / 1.90 gallons 7.19 litres / 1.90 gallons 7.19 litres / 1.90 gallons 7.19 litres / 1.90 gallons 7.19 litres / 1.90 gallons 7.19 litres / 1.90 gallons 7.19 litres / 1.90 gallons 7.19 litres / 1.90 gallons 7.57 litres / 2.00 US gallons 7.61 litres / 2.01 US gallons 7.61 litres / 2.01 US gallons 7.61 litres / 2.01 US gallons 7.61 litres / 2.01 US gallons
Bore x Stroke (mm) 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.1 mm 96.0 x 62.1 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.0 mm 96.0 x 62.1 mm 96.0 x 62.1 mm 96.0 x 62.1 mm
Comments - - - - - - - French brand. Model ID: CRF450X Model ID: CRF450X. Model ID: CRF450X. Model ID: CRF450X. Model ID: CRF450X. Model ID: CRF450X. Model ID: CRF450X. Model ID: CRF450X. Model ID: CRF450X.

Key Specifications

Engine

Single cylinder

Power

Not published by manufacturer

Torque

Not published by manufacturer

Top Speed

Not published by manufacturer

Weight

113.4 kg / 250.0 lbs

Fuel Capacity

8.59 litres / 2.27 gallons

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Full 2006 Honda CRF 450X Specifications

Colours Red
Ground Clearance (in.) 13.7 inches
Ground Clearance (mm) 348 mm
Seat Height 963 mm / 37.9 in.
Wheelbase 1,478 mm / 58.2 in.
Dry Weight 113.4 kg / 250.0 lbs
Fuel Capacity 8.59 litres / 2.27 gallons
Bore x Stroke (in,) 3.8 x 2.4 inches
Bore x Stroke (mm) 96.0 x 62.0 mm
Displacement (cc) 449.00 cc
Displacement (ci) 27.40 cubic inches
Engine Type Single cylinder
Fuel Control SOHC
Stroke 4
Fuel System Carburettor. Keihin 40.0mm flat-slide with throttle position sensor (TPS)
Compression Ratio 12.0:1
Engine Lubrication Dry sump
Ignition CD with electronic advance and lighting coil
Starter Electric & kick
Valve System 4
Final Drive Chain
Gearbox 5-speed
Suspension - Front 47.0mm inverted Showa cartridge fork with 16-position rebound- and 16-position compression-damping adjustability
Suspension - Rear Pro-Link Showa single shock with adjustable spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low speed (13 positions) and high-speed (3.5 turns)
Rake 27.3°
Trail 113 mm / 4.4 in.
Wheel Travel - Front 315 mm / 12.4 in.
Wheel Travel - Rear 315 mm / 12.4 in.
Brakes - Front Diameter (in.) 9.4 inches
Brakes - Front Diameter (mm) 240 mm
Brakes - Rear Diameter (in.) 9.4 inches
Brakes - Rear Diameter (mm) 240 mm
Brakes - Front Single disc
Brakes - Rear Single disc
Tyres - Front 80/70-21
Tyres - Rear 110/90-18

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.

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