Honda CRF450R 2018
Motocross / Racing
450cc
4-stroke
58.0hp
Measured power
248lb
Curb weight
37.8in
Seat height
12in
Front travel
2018 Honda CRF450R overview
The 2018 Honda CRF450R is a motocross competition bike with a liquid-cooled, fuel-injected 450cc four-stroke single and a five-speed transmission. A magazine dyno test measured 58 hp. Its aluminum perimeter frame carries a 49mm inverted Showa fork with 12.01 in of travel and a Pro-Link Showa rear shock with 12.36 in. The bike has a 37.8 in seat height, a 248 lb curb weight and a 1.66 gal fuel capacity.
Electric start became standard for 2018. A stock handlebar map switch and skid plate are included. The CRF450R is designed for motocross competition, not street use.
Who it's for
This bike is for experienced riders focused on motocross and racing, including riders competing in sanctioned closed-course events. Its high-performance 450cc engine, competition-oriented suspension and 37.8 in seat height suit riders who can manage a full-size motocross bike on a track. It is not a beginner bike or a choice for riders looking for a street-legal motorcycle or a general-purpose trail machine.
Quick facts
- The 2018 Honda CRF450R has a 450cc fuel-injected 4-stroke engine, a 5-speed gearbox and electric start.
- The 2018 CRF450R weighs 248 lb ready to ride and has a 37.8 in seat height.
- The 2018 CRF450R runs 80/100-21 front and 120/80-19 rear tires.
- The 2018 CRF450R takes 1.1 US qt (1.0 L) of 10W-30 engine oil.
- The 2018 CRF450R lists at $9,149 (US MSRP). It is not street legal in the US.
2018 Honda CRF450R specifications
Engine
- Displacement
- 450cc
- Stroke
- 4-stroke
- Fuel system
- Fuel injection
- Bore × stroke
- 96 × 62.1 mm
- Compression
- 13.5:1
- Power (measured)
- 58.0 hp at the rear wheel
- Cooling
- Liquid
- Configuration
- Single-cylinder
- Valve train
- SOHC
- Valves
- 4
- Oil chamber
- Dual
- Engine oil
- 1.1 US qt (1.0 L)
- Oil type
- 10W-30
- Coolant
- 1.1 US qt (1.06 L)
Clutch
- Type
- Wet multiplate
- Actuation
- Cable
- Assist
- None (standard clutch)
Drivetrain
- Starting
- Electric
- Transmission
- 5-speed
- Chain size
- 520
- Chain links
- 114
- Front sprocket
- 13T
- Rear sprocket
- 49T
Dimensions
- Seat height
- 37.8″
- Ground clearance
- 12.9″
- Wheelbase
- 58.3″
- Width
- 32.6″
- Height
- 50.2″
- Length
- 85.9″
- Curb weight
- 248 lb
- Fuel capacity
- 1.66 gal
Price & warranty
- Destination charge
- $330
- Colors
- Red
Frame & steering
- Frame material
- Aluminum
- Architecture
- Perimeter
- Rake
- 27.4°
- Trail
- 4.6″
Suspension
- Front
- 49mm inverted Showa fork with rebound and compression damping adjustability
- Front travel
- 12″
- Rear
- Pro-Link Showa single shock with adjustable spring preload, rebound and compression damping adjustability
- Rear travel
- 12.4″
Wheels & tires
- Front wheel
- 21″
- Rear wheel
- 19″
- Front tire
- 80/100-21 51M Dunlop MX3SF
- Rear tire
- 120/80-19 63M Dunlop MX3S
Brakes
- Front disc
- 260 mm
- Rear disc
- 240 mm
Stock features
- Map switch
- Yes
- Skid plate
- Yes
- Street legal (US)
- No
Battery / electrical
- Battery
- Yes
- OEM battery
- HY85S
- Chemistry
- Lithium
- Voltage
- 12V
- Capacity
- 2 Ah
2018 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
- Replace oil filter (first time)
- After the first break-in ride
- Clean air filter
- Every moto or about 2.5 hours
- Clean air filter
- Every moto
- Inspect spark plug
- Every moto 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
- 13 ft‑lb (18 N·m, 1.8 kgf·m)
- Oil filter cover bolts
- 7.4 ft‑lb (10 N·m, 1.0 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)
- Coolant drain bolt
- 7.4 ft‑lb (10 N·m, 1.0 kgf·m)
2018 Honda CRF450R vs 2017
Of the specs below, the 2018 Honda CRF450R has a $300 higher MSRP, is 5 lb heavier and has electric start (was kick), compared with the 2017 model.
| Spec | 2017 | 2018 | Changed |
|---|---|---|---|
| MSRP | $8,849 | $9,149 | New |
| Displacement | 450cc | Same | |
| Curb weight | 243 lb | 248 lb | New |
| Seat height | 37.8 in | Same | |
| Front travel | 12 in | Same | |
| Rear travel | 12.4 in | Same | |
| Fuel | 1.66 gal | Same | |
| Gearbox | 5-speed | Same | |
| Front tire | 80/100-21 51M Dunlop MX3SF | Same | |
| Rear tire | 120/80-19 63M Dunlop MX3S | Same | |
| Start | Kick | Electric | New |
2018 Honda CRF450R photos
Honda CRF450R FAQ
How much power does the 2018 Honda CRF450R make?
A magazine dyno test measured 58 hp.
What engine does the 2018 Honda CRF450R have?
It has a liquid-cooled, fuel-injected 450cc four-stroke single-cylinder engine with SOHC and four valves.
What is the seat height of the 2018 Honda CRF450R?
The seat height is 37.8 in.
How much does the 2018 Honda CRF450R weigh?
Its curb weight is 248 lb.
How much suspension travel does the 2018 Honda CRF450R have?
It has 12.01 in of front travel and 12.36 in of rear travel.
How much fuel does the 2018 Honda CRF450R hold?
The fuel capacity is 1.66 gal.
What engine oil does the 2018 Honda CRF450R use?
It uses SAE 10W-30 engine oil, with a capacity of 1.1 US qt (1.0 L).
Is the 2018 Honda CRF450R street legal?
No. It is not street legal in the United States.
How much did the 2018 Honda CRF450R cost new?
The MSRP was $9,149, plus a $330 destination charge.
What size tires does the 2018 Honda CRF450R use?
80/100-21 front and 120/80-19 rear.
What spark plug does the 2018 Honda CRF450R take?
NGK SILMAR9A-9S, gapped 0.031 – 0.035 in (0.8 – 0.9 mm).
What chain and sprockets does the 2018 Honda CRF450R use?
A 520 chain with 114 links on a 13-tooth front and 49-tooth rear sprocket.
Is the 2018 Honda CRF450R different from the 2017 model?
Among the main specs, the 2018 Honda CRF450R has a $300 higher MSRP, is 5 lb heavier and has electric start (was kick), compared with the 2017 model.
Other Honda CRF450R model years
Specs from Honda's owner's manual, Honda's website and published spec sheets. Updated .