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2019 Honda CRF150R

Chaparral Motorsports
May 23, 2018
Last Updated: November 9, 2020

(Press Release) Raced by Amsoil Honda hotshot Hunter Yoder on the amateur national circuit, Honda's smallest motocross machine is powered by a Unicam® four-stroke engine that offers a spread of ample, useable power and torque across the rev range. Suspension duties are handled by Showa®, with a 37mm inverted fork and Pro-Link® rear link system. In addition to the standard version, Honda offers the CRF150RB, which features larger wheels, a taller seat, a longer swingarm, and more rear-suspension travel.


High-performance Unicam cylinder-head design
Compact, lightweight engine assembly weighs only 43.6 pounds
Twin-sump lubrication system separates the oil supply for the crankshaft, piston and valve train from the clutch and transmission. This ensures a supply of cool oil to the clutch, eliminates potential clutch and transmission material contamination of the engine oil, reduces the amount of circulating oil, and permits the use of a smaller oil pump
Cylinder head, piston, camshaft, and carburetor provide power, torque, and rideability throughout the powerband
Lightweight, compact, internal auto decompression and handlebar-mounted hot-start system provide easy starting, hot or cold
32mm Keihin FCR carburetor with an accelerator-pump circuit provides accurate fuel metering, resulting in crisp throttle response and good rideability throughout the powerband
Suspension settings provide good action through even the toughest of track conditions
Exhaust system uses a lightweight stainless-steel header and re-packable aluminum muffler
Durable close-ratio five-speed transmission


Front and rear suspension settings unique to the CRF150R deliver ideal bump-absorption characteristics
Lightweight, high-tensile steel frame with large-diameter frame tubing and cross-member provides excellent turning performance and straight-line tracking
37mm leading-axle inverted Showa cartridge fork features friction-reducing design to improve compression and rebound control
Pro-Link rear suspension
Strong, lightweight wheels are durable and minimize unsprung weight
Lightweight front and rear disc brakes with high-performance pads offer powerful, precise braking
Stout 15mm front and 17mm rear axles incorporate a surface-treatment for added strength and durability
Large-capacity airbox and reusable two-stage foam air filter
Lightweight plastic body components (radiator shroud, side covers, rear fender, seat base, fuel tank, front fender, and front number plate) offer a slim, aggressive style
High-quality Dunlop tires
HRC works-type rear-brake system integrates the rear master cylinder and fluid reservoir, eliminating the separate rear master-cylinder reservoir and hose
Model CRF150R CRF150RB
Type 147.7cc water-cooled single-cylinder four-stroke
Valve Train Unicam®, four-valve; 26mm intake, steel; 22.5mm exhaust, steel
Bore x Stroke 66.0mm x 43.7mm
Compression Ratio 11.7:1
Induction Keihin 32mm flat-slide carburetor w/ Throttle Position Sensor (TPS
Ignition CD w/ electronic advance
Starter Kick
Driveline #420 chain; 15T/50T #420 chain; 15T/56T
Transmission Close-ratio 5-speed manual
Clutch Multiplate wet
Front 37mm fully adjustable leading-axle inverted conventional Showa cartridge fork; 10.8 in. travel
Rear Pro-Link fully adjustable Showa single shock; 10.7 in. travel Pro-Link fully adjustable Showa single shock; 11.1 in. travel
Front Single 220mm disc
Rear Single 190mm disc
Front 70/100-17 70/100-19
Rear 90/100-14 90/100-16
Rake (castor angle) 27°02' 27°48'
Trail 78mm (3.1 in.) 96mm (3.8 in.)
Length 72.1 in. 74.8 in.
Width 30.3 in.
Height 44.6 in. 46.1 in.
Seat Height 32.8 in. 34.1 in.
Ground Clearance 11.9 in. 13.2 in.
Wheelbase 49.6 in. 50.6 in.
Fuel Capacity 1.1 gal.
Curb Weight* 185 lbs. 187 lbs.
Colors Red
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