2020 Honda CRF125F Big Wheel Technical Analysis & Specification Breakdown
At the heart of the 2020 Honda CRF125F Big Wheel enduro - offroad motorcycle, Honda relies on a 124.9 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. Internal engine geometry specifies a bore and stroke of 52.4 x 57.9 mm (2.1 x 2.3 inches) with a 9.0:1 compression ratio.
On the scales, the CRF125F Big Wheel measures 90.3 kg (199 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,255 mm (49.4 in) wheelbase engineered for quick, flickable steering geometry. The 3.79-liter (1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Honda archive, this model family spans 9 indexed model years from 2017 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
785 mm (30.9 in)
Engine
Displacement124.9 ccm (7.62 cubic inches)
Engine TypeSingle cylinder, four-stroke
Compression9.0:1
Bore x Stroke52.4 x 57.9 mm (2.1 x 2.3 inches)
Valves/Cylinder2
Fuel SystemInjection. 22mm throttle bore
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionFull Transistorized
CoolingAir
Transmission
Gearbox4-speed
Final DriveChain (final drive)
Driveline#520 O-ring-sealed chain; 13T/48T
Performance
Emission DetailsMeets current California Air Resources Board (CARB) and EPA off-road emissions standards.
Chassis
Frame TypeDiamond, steel
Rake27.3°
Trail94 mm (3.7 inches)
Front Suspension31mm telescopic fork
Front Travel150 mm (5.9 inches)
Rear SuspensionPro-Link® single-shock
Rear Travel168 mm (6.6 inches)
Wheelbase1255 mm (49.4 inches)
Ground Clearance262 mm (10.3 inches)
Wheels & Brakes
Front Tyre70/100-19
Rear Tyre90/100-16
Front BrakesSingle disc
Front Brake Ø240 mm (9.4 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø149 mm (5.9 inches)
Dimensions & Weight
Weight incl.90.3 kg (199.0 pounds)
Seat Height785 mm (30.9 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
