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Honda CRF450X 2007

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Trail / Racing

2007 Honda CRF450X

449cc

4-stroke

255lb

Dry weight

37.9in

Seat height

12.4in

Front travel

5spd

Gearbox

2007 Honda CRF450X overview

Where it ridesRace-ready
  • Street
  • Trail
  • Woods
  • Rocks
  • Desert
  • Track

The 2007 Honda CRF450X is a 449 cc, liquid-cooled, single-cylinder four-stroke off-road bike built for trail riding and competition. Its SOHC engine has four valves, a carburetor and both electric and kick starting. The aluminum perimeter frame carries a 47 mm inverted Showa fork and Pro-Link Showa rear shock, with suspension travel of 12.4 in up front and 12.3 in at the rear. Dry weight is 255 lb, seat height is 37.9 in and fuel capacity is 2.27 gal. Updates for the year include a carburetor with a new accelerator pump and linkage, a lighter rear chain guide and a one-piece throttle-cable cover. Standard equipment includes a USDA-qualified spark arrester, headlight and LED taillight; there is no radiator fan.

Who it's for

This bike suits experienced off-road trail riders and racers who want a large-displacement four-stroke with adjustable suspension, electric starting and a kickstarter backup. Its 449 cc engine, 255 lb dry weight and 37.9 in seat height make it a substantial machine to manage, especially in tight, slow trails, so it is a poor fit for beginners or riders looking for a low, lightweight bike. It is intended for off-road or competition use, not street riding.

Quick facts

  • The 2007 Honda CRF450X has a 449cc carbureted 4-stroke engine, a 5-speed gearbox and electric and kick start.
  • The 2007 CRF450X weighs 255 lb dry and has a 37.9 in seat height.
  • The 2007 CRF450X runs 80/100-21 front and 110/100-18 rear tires.
  • The 2007 CRF450X takes 0.71 US qt (0.67 L) of 10W-30 engine oil; change it every 600 mi or 6 months (REGULAR OFF-ROAD USE, NON-COMPETITION).
  • The 2007 CRF450X listed at $7,399 (US MSRP). It is not street legal in the US.

2007 Honda CRF450X photos

2007 Honda CRF450X specifications

Engine

Displacement
449cc
Stroke
4-stroke
Fuel system
Carburetor
Bore × stroke
96 × 62.1 mm
Compression
12.0:1
Cooling
Liquid
Configuration
Single-cylinder
Valve train
SOHC
Valves
4
Oil chamber
Dual
Engine oil
0.71 US qt (0.67 L)
Oil type
10W-30
Gearbox oil
0.69 US qt (0.65 L)
Gearbox oil type
SAE 10W-30, JASO T903 MA
Coolant
1.28 US qt (1.21 L)

Clutch

Type
Wet multiplate
Actuation
Cable
Assist
None (standard clutch)

Drivetrain

Starting
Electric and kick
Transmission
5-speed
Chain size
520
Chain links
114
Front sprocket
13T
Rear sprocket
51T

Dimensions

Dry weight
255 lb
Seat height
37.9″
Ground clearance
13.6″
Wheelbase
58.4″
Width
32.3″
Height
50.1″
Length
85.8″
Fuel capacity
2.27 gal

Price & warranty

Colors
Red
Warranty
Noise control warranty only

Equipment

Spark arrester
Standard
Headlight
Standard
LED taillight
Standard

Frame & steering

Frame material
Aluminum
Architecture
Perimeter
Rake
27.2°
Trail
4.32″

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 adjustable 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
12.3″

Wheels & tires

Front wheel
21″
Rear wheel
18″
Front tire
80/100-21 51M Dunlop D742F
Rear tire
110/100-18 64M Dunlop D756

Brakes

Front disc
240 mm
Rear disc
240 mm

Stock features

Skid plate
Yes
Radiator fan
No
Street legal (US)
No

Battery / electrical

Battery
Yes
Chemistry
Lead acid
Voltage
12V
Capacity
6 Ah

2007 Honda CRF450X maintenance

From the maker's manuals. Tap a row to see the manual page.

Service intervals

Change engine oil (first time)
After 100 mi or 1 month (REGULAR OFF-ROAD USE, NON-COMPETITION)
Change engine oil (first time)
After the first break-in ride (COMPETITION USE)
Change engine oil
Every 600 mi or 6 months (REGULAR OFF-ROAD USE, NON-COMPETITION)
Inspect engine oil
Every 2.5 hours (COMPETITION USE)
Change engine oil
Every 15 hours (COMPETITION USE)
Replace oil filter (first time)
After 100 mi or 1 month (REGULAR OFF-ROAD USE, NON-COMPETITION)
Replace oil filter (first time)
After the first break-in ride (COMPETITION USE)
Replace oil filter
Every 600 mi or 6 months (REGULAR OFF-ROAD USE, NON-COMPETITION)
Replace oil filter
Every 15 hours (COMPETITION USE)
Change gearbox oil (first time)
After 100 mi or 1 month (REGULAR OFF-ROAD USE, NON-COMPETITION)
Change gearbox oil
Every 600 mi or 6 months (REGULAR OFF-ROAD USE, NON-COMPETITION)
Inspect gearbox oil
Every 2.5 hours (COMPETITION USE)
Change gearbox oil
Every 15 hours (COMPETITION USE)
Clean air filter
Every 600 mi or 6 months (REGULAR OFF-ROAD USE, NON-COMPETITION)
Clean air filter
Every 2.5 hours (COMPETITION USE)
Clean air filter
After every heat for dusty riding conditions
Inspect spark plug
Every 600 mi or 6 months (REGULAR OFF-ROAD USE, NON-COMPETITION)
Inspect spark plug
Every 2.5 hours (COMPETITION USE)
Replace piston and rings
Every 15 hours (COMPETITION USE)

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
7.4 ft‑lb (10 N·m, 1.0 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 top mount
32 ft‑lb (44 N·m, 4.5 kgf·m)

Parts that fit the 2007 Honda CRF450X

Exact parts for this bike. Tap one to see every store selling it, cheapest first.

Maintenance

Oil, filters, spark plug, battery, brakes and drive parts you replace as you ride.

Tires

Stock sizes, from the maker's manual.

Controls

Grips, and the throttle part each bike needs to fit them.

Not listed yet: Battery and rear brake pads. We only list a part once its maker names it for this bike, so we don't guess.

Prices include shipping where the store lists it and were checked Nov 2, 2026. A store that doesn't list its shipping is placed as if it charged what the other stores do. Prices change, so confirm at the store before you buy.

2007 Honda CRF450X vs 2006

New for 2007: A carburetor with a new accelerator pump and linkage, a lighter rear chain guide and a one-piece throttle-cable cover. Of the specs below, the 2007 Honda CRF450X has a $200 higher MSRP, takes SAE 10W-30 engine oil (was SAE 10W-40) and takes SAE 10W-30 gearbox oil (was SAE 10W-40), compared with the 2006 model.

Spec20062007Changed
MSRP$7,199$7,399Changed
Displacement449ccSame
Dry weight255 lbSame
Seat height37.9 inSame
Front travel12.4 inSame
Rear travel12.3 inSame
Fuel2.27 galSame
Gearbox5-speedSame
Front tire80/100-21 51M Dunlop D742FSame
Rear tire110/100-18 64M Dunlop D756Same
Engine oil10W-4010W-30Changed
Gearbox oilSAE 10W-40, JASO T903 MASAE 10W-30, JASO T903 MAChanged

Honda CRF450X FAQ

  1. What kind of engine does the 2007 Honda CRF450X have?

    It has a liquid-cooled, four-stroke SOHC single-cylinder engine with four valves and carbureted fuel delivery.

  2. What engine oil does the 2007 Honda CRF450X use?

    It uses SAE 10W-30 engine oil, with a capacity of 0.71 US qt (0.67 L).

  3. What is the fuel capacity of the 2007 Honda CRF450X?

    The fuel capacity is 2.27 gal.

  4. How much suspension travel does the 2007 Honda CRF450X have?

    It has 12.4 in of front travel and 12.3 in of rear travel.

  5. Is the 2007 Honda CRF450X street legal?

    It is not street legal in the US.

  6. What was the MSRP of the 2007 Honda CRF450X?

    Its MSRP was $7,399.

  7. Does the 2007 Honda CRF450X have electric start?

    Yes. It has electric starting and a kickstarter.

  8. What type of transmission does the 2007 Honda CRF450X have?

    It has a five-speed transmission and a cable-operated wet multi-plate clutch.

  9. What size tires does the 2007 Honda CRF450X use?

    80/100-21 front and 110/100-18 rear.

  10. What spark plug does the 2007 Honda CRF450X take?

    NGK IFR8H11 (or DENSO VK24PRZ11), gapped 0.039 – 0.043 in (1.0 – 1.1 mm).

  11. What chain and sprockets does the 2007 Honda CRF450X use?

    A 520 chain with 114 links on a 13-tooth front and 51-tooth rear sprocket.

  12. Is the 2007 Honda CRF450X different from the 2006 model?

    Yes. New for 2007: A carburetor with a new accelerator pump and linkage, a lighter rear chain guide and a one-piece throttle-cable cover. Among the main specs, the 2007 Honda CRF450X has a $200 higher MSRP, takes SAE 10W-30 engine oil (was SAE 10W-40) and takes SAE 10W-30 gearbox oil (was SAE 10W-40), compared with the 2006 model.

Other Honda CRF450X model years

Specs from Honda's owner's manual and Honda's website. Updated .