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2021 Honda CRF450R Specs
ENGINE
Motor: 4-stroke single
Displacement: 450cc
Bore x stroke: 96.0 x 62.1mm
Compression ratio: 13.5:1
Valvetrain: SOHC; 4 valves
Fueling: EFI w/ 46mm throttle body
Starting: Electric
Transmission: 5-speed
Clutch: Hydraulically actuated wet-multiplate
Final drive: 520 chain
CHASSIS
Frame: Twin-spar aluminum
Front suspension; travel: Fully adjustable Showa inverted 49mm fork; 12.2 inches (CRF450RWE: Titanium nitride coating on the sliders)
Rear suspension: Linkage-assisted fully adjustable Showa piggyback shock; 12.4 inches
Rims: D.I.D (CRF450RWE: D.I.D LX-X)
Tires: Dunlop Geomax MX33 (CRF450RX: Dunlop Geomax AT81)
Front tire: 80/100 x 21 (CRF450RX: 90/90 x 21)
Rear tire: 120/80 x 19 (CRF450RX: 120/90 x 18)
Front brake: 260mm disc w/ 2-piston caliper
Rear brake: 240mm disc w/ single-piston caliper
DIMENSIONS and CAPACITIES
Wheelbase: 58.3 inches
Rake: 27.7 degrees
Trail: 4.5 inches
Seat height: 38.0 inches
Ground clearance: 13.2 inches
Fuel capacity: 1.7 gallons (CRF450RX: 2.1 gallons)
Curb weight: 244 pounds (CRF450RX: 251 pounds)
Color: Red |
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Model CRF250R
ENGINE mType 249cc liquid-cooled single-cylinder four-stroke
Valve Train DOHC, four-valve; 33mm intake, titanium; 26mm exhaust, titanium
Bore x Stroke 79.0mm x 50.9mm
Compression Ratio 13.9:1
Induction Programmed fuel-injection system (PGM-FI); 44mm throttle bore
Ignition Full transistorized
Starter Push-button electric starter
Transmission Constant-mesh 5-speed return; manual
Clutch Multiplate wet (5 springs)
Final Drive #520 chain; 13T/48T
SUSPENSION Front 49mm fully adjustable leading-axle inverted telescopic Showa coil-spring fork; 12.0 in. travel
Rear Pro-Link system; fully adjustable Showa single shock; 12.4 in. travel
BRAKES Front 2-piston caliper (30mm, 27mm) hydraulic; single 260mm disc
Rear 1-piston caliper hydraulic; single 240mm disc
TIRES Front Dunlop Geomax MX3S 80/100-21 w/ tube
Rear Dunlop Geomax MX3S 100/90-19 w/ tube
MEASUREMENTS Rake (Caster Angle) 27°22?
Trail 116mm (4.6 in.)
Length 85.9 in. Width 32.5 in.
Height 50.2 in.
Ground Clearance 12.9 in.
Seat Height 37.8 in.
Wheelbase 58.3 in.
Fuel Capacity 1.6 gal.
Color Red
Curb Weight* 237 lbs.
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Engine
Bore × Stroke (mm) 66 x 43.8
Carburation 32mm Keihin FCR flat slide carburettor with throttle position sensor (TPS)
Compression Ratio 11.7:1
Engine Displacement (cc) 149.7
Engine Type (cm³) Liquid-Cooled 4-Stroke 4-Valve Unicam Single
Starter Kick
Wheels
Brakes Front 220mm hydraulic disc with single-piston caliper and sintered metal pads
Brakes Rear 190mm hydraulic disc with single piston caliper and sintered metal pads
Suspension Front 37mm inverted Showa leading-axle telescopic fork with adjustable compression and rebound damping; 275mm axle travel
Suspension Rear Pro-Link with single Showa damper, adjustable compression and rebound damping; 273mm axle travel
Tyre Size Front 70/100-19
Tyre Size Rear 90/100-16
Wheels Front Aluminium rim/wire spoke
Wheels Rear Aluminium rim/wire spoke
Dimensions and Weights
Caster Angle 27°
Dimensions (L×W×H) (mm) 1,900 x 770 x 1,171
Frame type Semi-double; Steel tube
Fuel Tank Capacity (Litres) 4.3 litres
Ground Clearance (mm) 336
Kerb Weight (kg) 84.4
Seat Height (mm) 866
Trail (mm) 96
Wheelbase (mm) 1285
Transmission
Clutch Wet, multiplate
Final Drive #420 Roller Chain
Gearbox 5-speed
Instruments and Electrics
Ignition System Solid-state Capacitor Discharge (CDI) with electronic advance
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