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Honda CRF450R 2015

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Motocross / Racing

2015 Honda CRF450R

450cc

4-stroke

53.0hp

Measured power

243lb

Curb weight

37.5in

Seat height

12.2in

Front travel

2015 Honda CRF450R overview

The 2015 Honda CRF450R is a motocross bike powered by a 450cc, liquid-cooled, fuel-injected four-stroke single with a SOHC four-valve head and five-speed transmission. Its aluminum perimeter frame carries a 48mm KYB PSF2 air fork with 12.2 inches of travel and a Pro-Link rear shock with 12.4 inches. The bike weighs 243 lb, has a 37.5-inch seat height, and holds 1.66 gal of fuel. A magazine dyno test measured 53 hp.

For 2015, updates include a new Unicam cylinder head and exhaust routing, with the header exiting to the right; larger twin pipes; a heavier flywheel; revised fuel injection and radiators; an Engine Mode Select button with three maps; a 48mm KYB PSF2 fork; a larger 260mm front disc; Dunlop MX52 tires; and new graphics. Standard equipment includes Honda Progressive Steering Damper (HPSD).

Who it's for

This CRF450R is for motocross racers and track-focused riders who want a full-size 450cc four-stroke built for competition. Its three engine maps and adjustable front and rear suspension give racers settings to work with across track conditions. The 37.5-inch seat and 243 lb curb weight suit riders comfortable managing a tall, high-output motocross bike. It is not for street riding; the model is not street legal in the US.

Quick facts

  • The 2015 Honda CRF450R has a 450cc fuel-injected 4-stroke engine, a 5-speed gearbox and kick start.
  • The 2015 CRF450R weighs 243 lb ready to ride and has a 37.5 in seat height.
  • The 2015 CRF450R runs 80/100-21 front and 120/80-19 rear tires.
  • The 2015 CRF450R takes 0.6 US qt (0.58 L) of 10W-30 engine oil; change it every 6 races or about 15 hours.
  • The 2015 CRF450R lists at $8,699 (US MSRP). It is not street legal in the US.

2015 Honda CRF450R specifications

Engine

Displacement
450cc
Stroke
4-stroke
Fuel system
Fuel injection
Bore × stroke
96 × 62.1 mm
Compression
12.5:1
Power (measured)
53.0 hp at the rear wheel
Cooling
Liquid
Configuration
Single-cylinder
Valve train
SOHC
Valves
4
Oil chamber
Dual
Engine oil
0.6 US qt (0.58 L)
Oil type
10W-30
Gearbox oil
0.7 US qt (0.64 L)
Coolant
1.0 US qt (0.94 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
37.5″
Ground clearance
13″
Wheelbase
58.7″
Width
32.6″
Height
50″
Length
86.3″
Curb weight
243 lb
Fuel capacity
1.66 gal

Price & warranty

Destination charge
$310
Colors
Red

Equipment

Honda Progressive Steering Damper (HPSD)
Standard

Frame & steering

Frame material
Aluminum
Architecture
Perimeter
Rake
27.1°
Trail
4.6″

Suspension

Front
48mm inverted KYB PSF (Pneumatic Spring Fork) with air-adjustable spring rate, and rebound and compression-damping adjustability
Front travel
12.2″
Rear
Pro-Link KYB single shock with adjustable spring preload, rebound damping adjustability, and compression damping adjustment separated into low-speed and high-speed
Rear travel
12.4″

Wheels & tires

Front wheel
21″
Rear wheel
19″
Front tire
80/100-21 51M Dunlop MX52F
Rear tire
120/80-19 63M Dunlop MX52

Brakes

Front disc
260 mm
Rear disc
240 mm

Stock features

Map switch
Yes
Street legal (US)
No

Battery / electrical

Battery
No

2015 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
7.4 ft‑lb (10 N·m, 1.0 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)
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)

Parts that fit the 2015 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.

Controls

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

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.

2015 Honda CRF450R vs 2014

New for 2015: New Unicam cylinder head and exhaust routing (the header pipe now exits to the right), larger twin pipes, heavier flywheel, revised fuel injection and radiators, Engine Mode Select button with three maps, 48mm KYB PSF2 fork, larger 260mm front disc, Dunlop MX52 tires and new graphics. Of the specs below, the 2015 Honda CRF450R runs the 80/100-21 51M Dunlop MX52F front tire (was 80/100-21 51M Dunlop MX51FA), runs the 120/80-19 63M Dunlop MX52 rear tire (was 120/80-19 63M Dunlop MX51) and has a 20 mm bigger front disc, compared with the 2014 model.

Spec20142015Changed
MSRP$8,699Same
Displacement450ccSame
Curb weight243 lbSame
Seat height37.5 inSame
Front travel12.2 inSame
Rear travel12.4 inSame
Fuel1.66 galSame
Gearbox5-speedSame
Front tire80/100-21 51M Dunlop MX51FA80/100-21 51M Dunlop MX52FNew
Rear tire120/80-19 63M Dunlop MX51120/80-19 63M Dunlop MX52New
Front disc240 mm260 mmNew

2015 Honda CRF450R photos

Honda CRF450R FAQ

  1. How much power does the 2015 Honda CRF450R make?

    A magazine dyno test measured 53 hp.

  2. What engine does the 2015 Honda CRF450R have?

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

  3. What is the seat height of the 2015 Honda CRF450R?

    The seat height is 37.5 inches.

  4. How much does the 2015 Honda CRF450R weigh?

    Its curb weight is 243 lb.

  5. How much suspension travel does the 2015 Honda CRF450R have?

    It has 12.2 inches of front travel and 12.4 inches of rear travel.

  6. How much fuel does the 2015 Honda CRF450R hold?

    Fuel capacity is 1.66 gal.

  7. What engine oil does the 2015 Honda CRF450R use?

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

  8. Is the 2015 Honda CRF450R street legal?

    No, the 2015 Honda CRF450R is not street legal in the US.

  9. What was the 2015 Honda CRF450R MSRP?

    The MSRP was $8,699, plus a $310 destination charge.

  10. What size tires does the 2015 Honda CRF450R use?

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

  11. What spark plug does the 2015 Honda CRF450R take?

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

  12. What chain and sprockets does the 2015 Honda CRF450R use?

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

  13. Is the 2015 Honda CRF450R different from the 2014 model?

    Yes. New for 2015: a handlebar Engine Mode Select button with three maps, KYB's 48mm PSF2 air fork, and a new Unicam cylinder head with the exhaust header exiting to the right. Among the main specs, the 2015 Honda CRF450R runs the 80/100-21 51M Dunlop MX52F front tire (was 80/100-21 51M Dunlop MX51FA), runs the 120/80-19 63M Dunlop MX52 rear tire (was 120/80-19 63M Dunlop MX51) and has a 20 mm bigger front disc, compared with the 2014 model.

Other Honda CRF450R model years

Specs from Honda's owner's manual, Honda's website and published spec sheets. Updated .