2006 Honda CRF 450X Specifications

Name: 2006 Honda CRF 450X
Brand: Honda

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2006 Honda CRF 450X Overview

The 2006 Honda CRF 450X is an enduro / off-road motorcycle built around 449 cc of displacement. Under the tank sits a Single cylinder engine running SOHC valve actuation, a compression ratio of 12.0:1. The bore and stroke measures 96 x 62 mm. From a practical standpoint, 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. Scroll down for the complete 2006 Honda CRF 450X spec sheet covering every technical detail from suspension travel to tyre sizes.

2006 CRF 450X - Pros & Cons

Strengths

Factory engineering: The 2006 Honda CRF 450X represents Honda's engineering at the time, with a specification built around real-world usability.

Considerations

Carburetor fuelling: Carbureted engines need occasional jetting attention and can be reluctant in cold weather or at altitude compared to modern fuel-injected alternatives.
Tall seat height: The 963 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.

Owner Experiences & Common Issues

Carburetor maintenance

Carburetors on the 2006 Honda CRF 450X benefit from a clean and re-jet if the bike has been stored, run on stale fuel, or modified with an aftermarket exhaust. Owners frequently mention that fresh jets and float needle clips transforms throttle response from flat to crisp.

Valve clearance checks

SOHC engines should have valve clearances checked at the manufacturer's specified interval. Owners report that clearances can tighten over time on higher-mileage bikes, leading to slight ticking from the top end. Catching it early keeps the job simple and avoids more costly remediation.

CRF 450X - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2006 Honda CRF 450X, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained CRF 450X should fire up cleanly and settle to a smooth idle within a few seconds.

Oil and filter changes

Regular oil changes are the single most important maintenance task on any CRF 450X. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.

Carburetor upkeep

Keep the carburetors clean and free of deposits. If the CRF 450X has been stored, strip and clean the carb float bowls before attempting to start it. Pilot jets are the first to block and the last to be checked - always include them in any carb rebuild.

Valve clearance service

Check that valve clearances have been adjusted at the correct intervals on any used CRF 450X. This is a job many owners skip because the bike does not immediately feel wrong - but tight clearances accelerate valve seat wear. Ask for proof it has been done.

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.

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

N/A

Torque

N/A

Top Speed

N/A

Weight

113.4 kg / 250.0 lbs

Fuel Capacity

8.59 litres / 2.27 gallons

Full 2006 Honda CRF 450X Specifications

Colours Red

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

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