2021 Honda CRF150R Expert Big Wheel Specifications

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Make ModelHonda CRF150R Expert (Big Wheel)
Year2021
Full Model Name2021 Honda CRF 150 RB
EngineLiquid cooled, 4-stroke, 1 cylinder, SOHC, 4 valves
Displacement149.7cc
Bore x Stroke66mm x 43.7mm
Compression Ratio11.7:1
InductionType: Carburator; Bore size: Ø 32mm
StartingKick-starter
Max Power17.5KW (23.47hp) @ 12,500RPM
Transmission / Drive5 Speeds / Chain
Front SuspensionØ 37mm forks, 274mm (10.8″) wheel travel
Rear SuspensionPro-Link fully adjustable Showa single shock; 10.7 inches of travel, 272mm (10.7″) wheel travel
Front BrakesType: Disc 1 disc, Ø 220mm, 1 piston caliper
Rear BrakesType: Disc 1 disc, Ø 190mm, 1 piston caliper
Front Wheel70/100-19 70/100-19 42M DUNLOP MX71F/BRIDGESTONE M61
Rear Wheel90/100-16 90/100-16 52M DUNLOP MX71/BRIDGESTONE M58
Seat Height866mm (34.1″)
Fuel Capacity4.3L (1.14gal.)
Top Speed128.75km/h (80mph)
Idle Speed RPM2,100+/-100
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Bike2021 Honda CRF150R Expert (Big Wheel)
Standard Maintenance Interval2.5hrs
Engine Oil Change Interval15hrs
Initial Valve Check15hrs
Periodic Valve Check15hrs
Engine Oil Capacity With Filter Change0.59L (0.156gal.)
More on Engine OilPro Honda GN4 4-stroke oil engine. SAE 10W-30/SAE 10W-40
Idle Speed RPM2,100 +/- 100
Coolant Capacity0.76L (0.201gal.) or at draining
SparksNGK CR8EH-9/CR9EH-9, DENSO U24FER9/U27FER9
Spark Plug Gap0.8 – 0.9mm
Final DriveType: Chain 420 Final Drive Ratio: 15 / 56
Front Wheel70/100-19 70/100-19 42M DUNLOP MX71F/BRIDGESTONE M61
Front Wheel Pressure (solo/dual riding)15psi (1.03bar, 103.42kPa)
Rear Wheel90/100-16 90/100-16 52M DUNLOP MX71/BRIDGESTONE M58
Rear Wheel Pressure (solo/dual riding)15psi (1.03bar, 103.42kPa)