Honda CRF125F Big Wheel - 2017 Specifications and Reviews

The 2017 Honda CRF125F Big Wheel is an entry-level trail bike designed for young riders and beginners seeking a manageable, reliable platform for off-road learning. Its larger wheels and low 833mm seat height provide confidence-building stability and easy ground reach, while the electric start and lightweight 108kg frame make it forgiving and accessible for developing riders.

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General information

CategoryEnduro / offroad
Year2017
ModelHonda CRF125F Big Wheel

Engine and Transmission Specifications

Emission detailsMeets current California Air Resources Board (CARB) and EPA off-road emissions standards.
Driveline#520 O-ring-sealed chain; 13T/48T
Transmission type,final driveChain
Gearbox5-speed
Cooling systemAir
IgnitionDC-CDI
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemCarburettor. 240mm piston-valve carburetor
Valves per cylinder2
Bore x Stroke52.4 x 57.8 mm (2.1 x 2.3 inches)
Compression9.5:1
Engine typeSingle cylinder, four-stroke
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter149 mm (5.9 inches)
Rear brakesExpanding brake (drum brake)
Front brakes diameter240 mm (9.4 inches)
Front brakesSingle disc
Rear tyre90/100-16
Front tyre70/100-19
Rear wheel travel226 mm (8.9 inches)
Rear SuspensionPro-Link® Showa single-shock; 8.9 inches travel
Front wheel travel231 mm (9.1 inches)
Front Suspension35mm leading-axle Showa® fork; 9.1 inches travel
Trail94 mm (3.7 inches)
Rake (fork angle)27.3°
Frame typeDiamond, steel
 
 

Physical measures and capacities

Reserve fuel capacity1.51 litres (0.40 gallons)
Fuel capacity7.19 litres (1.90 gallons)
Wheelbase1,328 mm (52.3 inches)
Ground clearance257 mm (10.1 inches)
Seat height833 mm (32.8 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc108.0 kg (238.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
ElectricalMaintenance-free sealed battery
StarterElectric
Color optionsRed

Performance Profile & Rider Fit

Best For

Track5%
City20%
Cornering30%
Daily Riding25%
Touring5%
Passenger5%

Rider Profile

Best ForThis bike is designed for young or beginner riders, typically pre-teens, who are progressing from smaller trail bikes.
PurposeIt's built for casual off-road trail riding, backyard fun, and learning basic motorcycle skills in a low-stakes environment.
Rider FitThe low 29.1 inch seat height and light 194 lb wet weight make it manageable for smaller or lighter-statured riders.
CharacterIt has a friendly, forgiving, and unintimidating character with mild power delivery suited to building confidence.
Not Ideal ForIt is not suitable for adult riders, highway use, or anyone seeking speed, long-distance touring, or passenger capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2017 Honda CRF125F Big Wheel Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 833mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2017 Honda CRF125F Big Wheel, with a cramped knee angle of around 70 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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