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Honda CRF450RWE 2021

Renamed Honda CRF450R HRC Works Edition for 2027.

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Motocross / Racing

2021 Honda CRF450RWE

450cc

4-stroke

56.7hp

Measured power

244lb

Curb weight

38in

Seat height

12.2in

Front travel

2021 Honda CRF450RWE overview

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

The 2021 Honda CRF450RWE is a 450 cc motocross race bike with a liquid-cooled, fuel-injected four-stroke single, SOHC four-valve head, and five-speed transmission. Its measured output is 56.7 hp on a dyno. For 2021, it is based on the all-new CRF450R, with a lighter twin-spar frame, new swingarm, slimmer bodywork, one muffler instead of two, and a hydraulic clutch. The Works Edition adds race-shop upgrades, including a Hinson clutch basket and cover and a Twin Air air filter. Its 49 mm Showa fork has Kashima coating on the fork tubes and titanium-nitride coating on the fork legs; front and rear travel are 12.2 in and 12.4 in. Standard equipment includes Honda Selectable Torque Control, HRC Launch Control, a titanium fuel tank, and a handlebar map switch.

Who it's for

This is for motocross racers and experienced riders who want a competition-focused 450 with electric starting, a hydraulic clutch, and adjustable Showa suspension. Its 56.7 hp measured output, 38 in seat height, and 244 lb curb weight suit riders prepared to manage a powerful race bike on a motocross track. It is not street legal in the US, so it is not a fit for riders who need a road-registered motorcycle or beginners looking for a mild trail bike.

Quick facts

  • The 2021 Honda CRF450RWE has a 450cc fuel-injected 4-stroke engine, a 5-speed gearbox and electric start.
  • The 2021 CRF450RWE weighs 244 lb ready to ride and has a 38 in seat height.
  • The 2021 CRF450RWE runs 80/100-21 front and 120/80-19 rear tires.
  • The 2021 CRF450RWE takes 1.1 US qt (1.0 L) of 10W-30 engine oil; change it every 6 races or about 15 hours.
  • The 2021 CRF450RWE listed at $12,380 (US MSRP). It is not street legal in the US.

2021 Honda CRF450RWE photos

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2021 Honda CRF450RWE specifications

Engine

Displacement
450cc
Stroke
4-stroke
Fuel system
Fuel injection
Bore × stroke
96 × 62.1 mm
Compression
13.5:1
Power (measured)
56.7 hp at the rear wheel
Torque
34.8 ft-lb
Cooling
Liquid
Configuration
Single-cylinder
Valve train
SOHC
Valves
4
Engine oil
1.1 US qt (1.0 L)
Oil type
10W-30
Coolant
1.14 US qt (1.08 L)

Clutch

Type
Wet multiplate
Actuation
Hydraulic

Drivetrain

Starting
Electric
Transmission
5-speed
Chain size
520
Chain links
114
Front sprocket
13T
Rear sprocket
49T

Dimensions

Seat height
38″
Ground clearance
13.2″
Wheelbase
58.3″
Width
32.6″
Height
49.9″
Length
85.9″
Curb weight
244 lb
Fuel capacity
1.7 gal

Price & warranty

Colors
Red
Warranty
Sold “as is” with no warranties.

Equipment

Titanium fuel tank
Standard
HRC Launch Control
Standard
Honda Selectable Torque Control
Standard

Frame & steering

Frame material
Aluminum
Rake
27.1°
Trail
4.5″

Suspension

Front
49mm fully adjustable leading-axle inverted telescopic Showa coil-spring fork; Kashima coating on fork tubes, titanium-nitride coating on fork legs
Front travel
12.2″
Rear
Pro-Link system; fully adjustable Showa single shock
Rear travel
12.4″

Wheels & tires

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

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

2021 Honda CRF450RWE maintenance

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

Service intervals

Inspect engine oil
Every race or about 2.5 hours
Change engine oil
Every 6 races or about 15 hours
Replace oil filter
Every 6 races or about 15 hours
Clean air filter
Every race or about 2.5 hours
Inspect spark plug
Every race or about 2.5 hours

Spark plug

Spark plug
NGK SILMAR10A-9S
Plug gap
0.031 – 0.035 in (0.80 – 0.90 mm)

Torque specs

Oil drain bolt
13 ft‑lb (18 N·m, 1.8 kgf·m)
Spark 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)
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)
Rear sprocket nuts
30 ft‑lb (40 N·m, 4.1 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 nuts
32 ft‑lb (44 N·m, 4.5 kgf·m)

Parts that fit the 2021 Honda CRF450RWE

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.

Controls

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

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.

Honda CRF450RWE FAQ

  1. How much power does the 2021 Honda CRF450RWE make?

    It measured 56.7 hp on a dyno.

  2. What kind of engine does the 2021 Honda CRF450RWE have?

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

  3. What is the seat height of the 2021 Honda CRF450RWE?

    The seat height is 38 in.

  4. How much does the 2021 Honda CRF450RWE weigh?

    Its curb weight is 244 lb.

  5. How much fuel does the 2021 Honda CRF450RWE hold?

    The fuel capacity is 1.7 gal.

  6. What oil does the 2021 Honda CRF450RWE use?

    It uses SAE 10W-30 engine oil, with a capacity of 1.1 US qt (1.0 L).

  7. Is the 2021 Honda CRF450RWE street legal in the US?

    It is not street legal in the US.

  8. What is the suspension travel on the 2021 Honda CRF450RWE?

    Front travel is 12.2 in and rear travel is 12.4 in.

  9. How much did the 2021 Honda CRF450RWE cost new?

    Its MSRP was $12,380.

  10. How is the 2021 Honda CRF450RWE different from the CRF450R?

    Compared with the CRF450R, the Works Edition has race-shop upgrades including a Hinson clutch basket and cover, a Twin Air air filter, Kashima coating on the fork tubes, and titanium-nitride coating on the fork legs. Both trims include Honda Selectable Torque Control, HRC Launch Control, and a titanium fuel tank. Its MSRP was $12,380, versus $9,599 for the CRF450R.

  11. What size tires does the 2021 Honda CRF450RWE use?

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

  12. What spark plug does the 2021 Honda CRF450RWE take?

    NGK SILMAR10A-9S, gapped 0.031 – 0.035 in (0.80 – 0.90 mm).

  13. What chain and sprockets does the 2021 Honda CRF450RWE use?

    A 520 chain with 114 links on a 13-tooth front and 49-tooth rear sprocket.

Other Honda CRF450R HRC Works Edition model years

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