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2015 Honda CB 125F Overview
The 2015 Honda CB 125F is a sport motorcycle built around 124.7 cc of displacement. Under the tank sits a Single cylinder, four-stroke engine running Overhead Cams (OHC) valve actuation, a compression ratio of 9.2:1. 2015 Honda CB 125F delivers 10.5 hp @ 7750 rpm of peak power and 10.2 Nm @ 6250 rpm of torque. From a practical standpoint, the 2015 CB 125F tips the scales at 129 kg, carries a 13-litre fuel tank, offers a seat height of 774 mm and spans a 1295 mm wheelbase. That's roughly 65.8 kg lighter than the average sport motorcycle in our database. Scroll down for the complete 2015 Honda CB 125F spec sheet covering every technical detail from suspension travel to tyre sizes.
2015 Honda CB 125F compared with other bikes in the Sport category
Here is how the 2015 Honda CB 125F stacks up against other bikes in the Sport category in our database. Each model counts once, using the model year closest to this one, and the comparison covers up to 1573 models.
- Power-to-weight ratio of 61 W/kg is lower than that of 712 of the other 726 bikes in the Sport category.
- Only 31 of the other 1340 bikes in the Sport category have a lower power output than the 7.8 kW of the CB 125F.
- With 10.2 Nm, the CB 125F has the 50th lowest torque of 1573 bikes in the Sport category, 87% below the category average of 75.8 Nm.
- Narrowing the field to the 275 models within five model years of it, the power-to-weight ratio of 61 W/kg is lower than that of 271 of the other 274.
2015 CB 125F - Pros & Cons
Strengths
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Strong power output: 2015 Honda CB 125F makes 10.5 hp @ 7750 rpm with 10.2 Nm @ 6250 rpm of torque - competitive figures for its class.
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Fuel injection: The fuel injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
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Strong front braking: The disc front brake gives excellent stopping power and responds well to aftermarket braided lines.
Considerations
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Drum rear brake: The drum rear brake is adequate but lacks the modulation and fade resistance of a disc setup found on more modern equivalents.
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Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.
Wear Points & Servicing Notes
Heat management in traffic
CB 125F's air-cooled design means engine-bay temperatures build up more in stop-start traffic than on a liquid-cooled equivalent - a function of the cooling method itself, not a defect. Mesh riding gear and avoiding prolonged idling help in hot climates.
Fuelling & injector care
Fuelling comes from fuel injection. Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.
Brake disc and pad wear
The disc front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.
Suspension condition on used examples
Up front, the CB 125F runs 31mm Telescopic fork, non-adjustable fork and Dual rear shocks with 5-step spring preload adjustment at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.
Final drive maintenance
Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.
Frame & chassis check
The frame is Steel backbone - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.
Low-speed handling
At just 129 kg, the CB 125F is light enough to manhandle easily at a standstill - one of the practical advantages of its class.
CB 125F - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2015 Honda CB 125F with its 124.7 cc sport, start with the basics: check the service book for oil change frequency, inspect the drivetrain for wear, and look for oil seepage around the engine casings and rocker covers. This model runs chain final drive, so check chain slack and sprocket tooth profile specifically - a worn sprocket is a cheaper fix now than after it's chewed up the next chain. Now 11 years old, this sport is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. A cold start test is invaluable - a well-maintained CB 125F should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task for the CB 125F's 124.7 cc single cylinder, four-stroke. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. The sump holds 1 litres, so budget for that volume of quality motorcycle-specific engine oil. With a 9.2:1 compression ratio, running the octane grade specified in the manual matters more than on a lower-compression engine. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The CB 125F's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.
2015 Honda CB 125F - Frequently Asked Questions
What engine does the 2015 Honda CB 125F have?
The 2015 Honda CB 125F uses a Single cylinder, four-stroke engine with 124.7 cc of displacement. It is air cooled.
How much does the 2015 Honda CB 125F weigh?
The 2015 Honda CB 125F weighs 129 kg. This is the manufacturer's wet figure.
How much power does the 2015 Honda CB 125F make?
The 2015 Honda CB 125F produces 10.5 hp @ 7750 rpm of power and 10.2 Nm @ 6250 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2015 Honda CB 125F?
The 2015 Honda CB 125F has a 13-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 216-260 km between stops.
Is the 2015 Honda CB 125F suitable for shorter riders?
The 2015 Honda CB 125F has a seat height of 774 mm. This is a moderate seat height that suits a wide range of rider heights.
What brakes does the 2015 Honda CB 125F have?
The 2015 Honda CB 125F uses single 240mm disc 2 piston caliper at the front and 130mm Drum at the rear.
What tyre sizes does the 2015 Honda CB 125F use?
The 2015 Honda CB 125F runs 80/100 -18M/C 47P front and 90/90 -18M/C 51P rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2015 Honda CB 125F have?
The 2015 Honda CB 125F is fitted with a 5 Speed transmission.
How much oil does the 2015 Honda CB 125F take?
The 2015 Honda CB 125F takes 1 litres of engine oil at a full oil and filter change. Always verify against the dipstick or sight glass after filling.
Honda CB 125F Spec Evolution
The Honda CB 125F was produced across 6 model years (2017-2025). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2017 |
2019 |
2020 |
2022 |
2023 |
2025 |
| Max Power |
10.5 hp / 7.8 kW @ 7750 rpm |
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10.5 hp / 7.8 kW @ 7750 rpm |
10.7 hp / 7.8 kW @ 7750 rpm |
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10.7 hp / 8 kW @ 7500 rpm |
| Wet Weight |
128.0 kg / 282.2 lbs |
128.0 kg / 282.2 lbs |
129 kg / 284.3 lbs |
117 kg / 258 lbs |
117.0 kg / 257.9 lbs |
117 kg / 258 lbs |
| Engine Detail |
Four stroke, single cylinder, OHC, two valve |
Balancer shaft |
Four stroke, single cylinder, OHC, two valve |
Four stroke, single cylinder, OHC, 2 valves |
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Four stroke, single cylinder, OHC, 2 valves |
| Seat Height |
775 mm / 30.5 in. |
775 mm / 30.5 in. |
774 mm / 30.4 in |
790 mm / 31.1 in |
790 mm / 31.1 in. |
790 mm / 31.1 in |
| Fuel Capacity |
13.00 litres / 3.43 gallons |
13.00 litres / 3.43 US gallons |
13 Litres / 3.4 gal |
11 Litres / 2.9 gal |
11.00 litres / 2.91 US gallons |
11 Litres / 2.9 gal |
| Oil Capacity (Quarts) |
0.07 quarts |
1.06 US quarts |
0.07 quarts |
1.06 US quarts |
1.06 US quarts |
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| Displacement (ci) |
7.61 cubic inches |
7.61 cubic inches |
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7.56 cubic inches |
7.56 cubic inches |
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| Displacement (cc) |
124.70 cc |
124.7 cc |
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123.9 cc |
123.9 cc |
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Key Specifications
Engine
Single cylinder, four-stroke
Power
10.5 hp / 7.8 kW @ 7750 rpm
Torque
10.2 Nm / 7.5 lbft @ 6250 rpm
Weight
129 kg / 284.3 lbs
Fuel Capacity
13 Litres / 3.4 gal
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Full 2015 Honda CB 125F Specifications
Year
2015 - 17
Colours
Yellow
Make Model
Honda CB 125F
Seat Height
774 mm / 30.4 in
Wheelbase
1295 mm / 50.9 in
Ground Clearance
160 mm / 6.2 in
Height
1080 mm / 42.5 in
Length
2035 mm / 80.1 in
Width
765 mm / 30.1 in
Oil Capacity (l)
1.00 litres
Oil Capacity (Quarts)
0.07 quarts
Fuel Capacity
13 Litres / 3.4 gal
Wet Weight
129 kg / 284.3 lbs
Engine Type
Single cylinder, four-stroke
Fuel Control
Overhead Cams (OHC)
Displacement
124.7 cc / 7.6 cu-in
Engine Detail
Four stroke, single cylinder, OHC, two valve
Fuel System
Carburettor
Bore x Stroke
52.4 × 57.8 mm
Compression Ratio
9.2:1
Cooling System
Air cooled
Fuel Induction
Fuel injection
Fuel Reserve
2.50 litres / 0.66 gallons
Ignition
Digital CDI
Lubrication
Wet sump
Starter
Electric
Clutch
Wet, multiplate with coil springs
Final Drive
Chain
Gearbox
4-speed
Transmission / Drive
5 Speed
Frame Type
Steel backbone
Suspension - Front
31mm Telescopic fork, non-adjustable fork
Suspension - Rear
Dual rear shocks with 5-step spring preload adjustment
Rake
26 °
Seat
Two-person seat
Trail
97 mm / 3.8 in
Wheel Travel - Front
118 mm / 4.6 in.
Wheel Travel - Rear
70 mm / 2.8 in.
Brakes - Front Diameter (in.)
9.4 inches
Brakes - Front Diameter (mm)
240 mm
Brakes - Rear Diameter (in.)
5.1 inches
Brakes - Rear Diameter (mm)
130 mm
Brakes - Front
Single 240mm disc 2 piston caliper
Brakes - Rear
130mm Drum
Rims
Spoke cast aluminium
Tyres - Front
80/100 -18M/C 47P
Tyres - Rear
90/90 -18M/C 51P
Wheels
Six spoke cast aluminium
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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