2021 Honda CRF125FB Big Wheel Specifications

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Make ModelHonda CRF125FB (Big Wheel)
Year2021
Full Model Name2021 Honda CRF 125 FB
EngineAir cooled, 4-stroke, 1 cylinder, SOHC, 2 valves
Displacement124.9cc
Bore x Stroke52.4mm x 57.9mm
Compression Ratio9:1
InductionType: EFI; Bore size: Ø 22mm
StartingKick-starter & Electric Start
Max Power6.64KW (8.9hp) @ 7,500RPM
Transmission / Drive4 Speeds / Chain
Front SuspensionØ 31mm forks, 151mm (5.94″) wheel travel
Rear SuspensionPro-Link® single-shock; 6.6 inches of travel, 168mm (6.61″) wheel travel
Front BrakesType: Disc 1 disc, Ø 220mm, 2 piston calipers
Rear BrakesType: Drum Ø 95mm
Front Wheel70/100-19 70/100–19M/C 42M
Rear Wheel90/100-16 90/100–16M/C 51M
Seat Height785mm (30.9″)
Fuel Capacity3.7L (0.98gal.)
Top Speed104.61km/h (65mph)
Idle Speed RPM1,400+/-100
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Bike2021 Honda CRF125FB (Big Wheel)
Standard Maintenance Interval965.61km (600mi)
Break-in Interval24.14km (15mi)
Engine Oil Change Interval965.61km (600mi)
Initial Valve Check965.61km (600mi)
Periodic Valve Check965.61km (600mi)
More on Engine OilPro Honda GN4 4-stroke oil engine. SAE 10W-30/SAE 10W-40
Idle Speed RPM1,400 +/- 100
SparksNGK CPR6EA-9
Spark Plug Gap0.8 – 0.9mm
Final DriveType: Chain 420 DID428HD Final Drive Ratio: 13 / 49
Front Wheel70/100-19 70/100–19M/C 42M
Front Wheel Pressure (solo/dual riding)15psi (1.03bar, 103.42kPa)
Rear Wheel90/100-16 90/100–16M/C 51M
Rear Wheel Pressure (solo/dual riding)15psi (1.03bar, 103.42kPa)
Throttle Grip Free Play2 (0.08) – 6mm (0.24″)
Clutch Lever Free Play10 (0.39) – 20mm (0.79″)
Drive Chain Slack25 (0.98) – 35mm (1.38″)
Engine Oil Drain Bolt Torque24N·m (17.7ft·lbf)
Front Axle Bolt Torque62N·m (45.73ft·lbf)
Rear Axle Bolt Torque62N·m (45.73ft·lbf)