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Honda CRF450R 2010

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Motocross / Racing

2010 Honda CRF450R

450cc

4-stroke

234.8lb

Curb weight

37.6in

Seat height

12.2in

Front travel

5spd

Gearbox

2010 Honda CRF450R overview

The 2010 Honda CRF450R is a motocross racing bike with a 450cc liquid-cooled, fuel-injected, four-stroke single-cylinder engine, SOHC four-valve head and five-speed transmission. It has an aluminum perimeter frame, a 37.6-inch seat height and a curb weight of 234.8 lb. Suspension is a 48mm inverted KYB Air-Oil-Separate fork with 12.2 inches of travel and a Pro-Link KYB rear shock with 12.6 inches of travel; Honda Progressive Steering Damper (HPSD) is standard.

For 2010, updates include new ECU programming; a revised auto-decompression system with a new decompressor pin shape, weight and spring for easier starting; revised fork seals, oil settings and valving; and a rear shock with a redesigned piston, high-speed compression adjuster and new valving.

Who it's for

This CRF450R is aimed at motocross racers and riders who spend their time on closed-course tracks. Its 450cc four-stroke engine, five-speed gearbox and adjustable front and rear suspension suit racing and track practice, where riders can make suspension adjustments for different track conditions. The 37.6-inch seat height and kick starting are relevant considerations when assessing fit and starting preference. It is not a street-legal bike, so it does not suit riders looking for a road-registered motorcycle for commuting or mixed road-and-trail use.

Quick facts

  • The 2010 Honda CRF450R has a 450cc fuel-injected 4-stroke engine, a 5-speed gearbox and kick start.
  • The 2010 CRF450R weighs 234.8 lb ready to ride and has a 37.6 in seat height.
  • The 2010 CRF450R runs 80/100-21 front and 120/80-19 rear tires.
  • The 2010 CRF450R takes 0.6 US qt (0.58 L) of 10W-30 engine oil; change it every 6 races or about 15 hours.
  • The 2010 CRF450R lists at $8,099 (US MSRP). It is not street legal in the US.

2010 Honda CRF450R specifications

Engine

Displacement
450cc
Stroke
4-stroke
Fuel system
Fuel injection
Bore × stroke
96 × 62.1 mm
Compression
12.0:1
Cooling
Liquid
Configuration
Single-cylinder
Valve train
SOHC
Valves
4
Engine oil
0.6 US qt (0.58 L)
Oil type
10W-30
Coolant
1.1 US qt (1.04 L)

Clutch

Type
Wet multiplate
Actuation
Cable
Assist
None (standard clutch)

Drivetrain

Starting
Kick
Transmission
5-speed
Chain size
520
Chain links
116
Front sprocket
13T
Rear sprocket
48T

Dimensions

Seat height
37.6″
Ground clearance
13.1″
Wheelbase
58.7″
Width
32.6″
Height
50.1″
Length
86.3″
Curb weight
234.8 lb
Fuel capacity
1.5 gal

Price & warranty

Colors
Red

Equipment

Honda Progressive Steering Damper (HPSD)
Standard

Frame & steering

Frame material
Aluminum
Architecture
Perimeter
Rake
26.9°
Trail
4.5″

Suspension

Front
48mm inverted KYB Air-Oil-Separate (AOS) with rebound and compression-damping adjustability
Front travel
12.2″
Rear
Pro-Link KYB single shock with spring preload, rebound damping adjustability, and compression damping adjustment separated into low-speed and high-speed
Rear travel
12.6″

Wheels & tires

Front wheel
21″
Rear wheel
19″
Front tire
80/100-21 51M Dunlop D742FA
Rear tire
120/80-19 63M Dunlop D756

Brakes

Front disc
240 mm
Rear disc
240 mm

Stock features

Street legal (US)
No

Battery / electrical

Battery
No

2010 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
Change gearbox oil
When the clutch discs and plates are replaced
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

Spark plug

Spark plug
NGK SILMAR9A-9S
Plug gap
0.031 – 0.035 in (0.8 – 0.9 mm)
Spark plug (optional)
NGK SILMAR10A-9S

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
12 ft‑lb (16 N·m, 1.6 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)
Coolant drain bolt
7.4 ft‑lb (10 N·m, 1.0 kgf·m)

Parts that fit the 2010 Honda CRF450R

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.

Prices include shipping where the store lists it and were checked Nov 1, 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.

2010 Honda CRF450R vs 2009

New for 2010: New ECU programming, a revised auto-decompression system (new decomp pin shape and decompressor weight and spring) for easier starting, revised fork seals, oil and valving, and a rear shock with a redesigned piston, high-speed compression adjuster and new valving. Of the specs below, only the price changed: it has a $500 higher MSRP than the 2009 model.

Spec20092010Changed
MSRP$7,599$8,099New
Displacement450ccSame
Curb weight235 lbSame
Seat height37.6 inSame
Front travel12.2 inSame
Rear travel12.6 inSame
Fuel1.5 galSame
Gearbox5-speedSame
Front tire80/100-21 51M Dunlop D742FASame
Rear tire120/80-19 63M Dunlop D756Same

2010 Honda CRF450R photos

01 / 02

Honda CRF450R FAQ

  1. What engine does the 2010 Honda CRF450R have?

    It has a 450cc liquid-cooled, fuel-injected four-stroke single-cylinder engine with a SOHC four-valve layout.

  2. How tall is the seat on the 2010 Honda CRF450R?

    The seat height is 37.6 inches.

  3. How much does the 2010 Honda CRF450R weigh?

    Its curb weight is 234.8 lb.

  4. How much suspension travel does the 2010 Honda CRF450R have?

    It has 12.2 inches of front travel and 12.6 inches of rear travel.

  5. How much fuel does the 2010 Honda CRF450R hold?

    Its fuel capacity is 1.5 gal.

  6. What engine oil does the 2010 Honda CRF450R use?

    It uses 10W-30 engine oil, with a capacity of 0.6 US qt (0.58 L).

  7. Is the 2010 Honda CRF450R street legal?

    No, it is not street legal in the US.

  8. How much did the 2010 Honda CRF450R cost new?

    The US MSRP was $8,099.

  9. What size tires does the 2010 Honda CRF450R use?

    80/100-21 front and 120/80-19 rear.

  10. What spark plug does the 2010 Honda CRF450R take?

    NGK SILMAR9A-9S, gapped 0.031 – 0.035 in (0.8 – 0.9 mm).

  11. What chain and sprockets does the 2010 Honda CRF450R use?

    A 520 chain with 116 links on a 13-tooth front and 48-tooth rear sprocket.

  12. Is the 2010 Honda CRF450R different from the 2009 model?

    Yes. New for 2010: new ECU programming, a revised auto-decompression system (new decomp pin shape and decompressor weight and spring) for easier starting, new fork oil seals, oil settings and valving, and a rear shock with a redesigned piston, high-speed compression adjuster and new valving. Among the main specs, only the price changed: it has a $500 higher MSRP than the 2009 model.

Other Honda CRF450R model years

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