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  • 2018 CRF150R

    2018 CRF150R

    • 149cc liquid-cooled single-cylinder four-stroke engine
    • Designed for smaller racers
    Starting at $5,099
  • 2018 CRF250R

    2018 CRF250R

    • 249cc liquid-cooled single-cylinder four-stroke
    Starting at $7,999
  • 2018 CRF450R

    2018 CRF450R

    • 449cc liquid-cooled single-cylinder four-stroke engine
    • Downdraft Fuel Injection
    Starting at $9,149
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Engine Type 149cc liquid-cooled single-cylinder single cylinder four stroke 249cc liquid-cooled single-cylinder four-stroke 449cc liquid-cooled single-cylinder four-stroke
Bore And Stroke 66mm x 43.7mm 79.0mm x 50.9mm 96mm x 62.1mm
Compression Ratio 11.7:1 13.9:1 13.5:1
Valve Train Unicam®, four-valve; 26mm intake, steel; 22.5mm exhaust, steel DOHC, four-valve; 33mm intake, titanium; 26mm exhaust, titanium Unicam® four-valve; 38mm intake, titanium; 31mm exhaust, Steel
Induction Keihin® 32mm flat slide with Throttle Position Sensor (TPS) Programmed fuel-injection system (PGM-FI); 46mm throttle bore Programmed Fuel Injection (PGM-FI), 46mm downdraft throttle body
Ignition Solid-state CD with electronic advance Full transistorized DC-CDI

Drive Train

Transmission Close-ratio five speed Constant-mesh 5-speed return; manual Close-ratio five-speed
Final Drive #420 chain; 15T/50T #520 Chain; 13T/48T #520 Chain; 13T/49T

Chassis / Suspension / Brakes

Front Suspension 37mm fully adjustable leading-axle inverted Showa® cartridge fork; 10.8 inches travel 49mm fully adjustable leading-axle inverted telescopic Showa SPG coil-spring fork; 12.0 inches travel 49mm inverted Showa fork with rebound and compression damping adjustability; 12.0 inches of travel
Rear Suspension Pro-Link® fully adjustable Showa single shock; 10.7 inches travel Pro-Link system; fully adjustable Showa single shock; 12.4 inches travel Pro-Link® Showa single shock with adjustable spring preload, rebound and compression damping adjustability; 12.3 inches of travel
Front Brake Single 220mm disc Single 260mm hydraulic disc Single 260mm disc with twin-piston caliper
Rear Brake Single 190mm disc Single 240mm hydraulic disc Single 240mm disc
Front Tire 70/100-17 Dunlop MX51 Dunlop Geomax MX3S 80/100-21 with tube Dunlop MX3S 90/100-21
Rear Tire 90/100-14 Dunlop Geomax MX3S 120/90-19 with tube Dunlop MX3S 120/80-19


Rake 27°2' (Caster Angle) 27° 22' (Caster Angle) 27° 22' (Caster Angle)
Trail 78mm (3.1 inches) 116mm (4.6 inches) 116mm (4.6 inches)
Wheelbase 49.6 inches 58.3 inches 58.3 inches
Seat Height 32.8 inches 37.8 inches 37.8 inches
Ground Clearance 11.9 inches 12.9 inches 12.9 inches
Curb Weight 185 pounds (Includes all standard equipment, required fluids and full tank of fuel–ready to ride.) 238 pounds (Includes all standard equipment, required fluids and a full tank of fuel–ready to ride) 248 lbs (Includes all standard equipment, required fluids and full tank of fuel—ready to ride.)
Fuel Capacity 1.11 gallons 1.6 gallons 1.7 gallons


Emissions Consult owners manual for optional racing parts.
Available Colors Red Red Red
Model ID CRF150R CRF250R CRF450R