Key performance

10 ch
Power
🔧
125 cc
Displacement
13.0 L
Fuel capacity
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Technical specifications

Engine

Displacement
125 cc
Power
10.3 ch @ 8600 tr/min (7.5 kW)
Torque
8.5 Nm @ 7500 tr/min
Engine type
Single cylinder, four-stroke
Cooling
Air
Compression ratio
9.2:1
Bore × stroke
56.5 x 49.5 mm (2.2 x 1.9 inches)
Fuel system
Carburettor
Valve timing
Single Overhead Cams (SOHC)
Ignition
CDI
Starter
Electric & kick

Chassis

Frame
Steel
Gearbox
4-speed
Final drive
Belt   (final drive)
Front suspension
Oil damped telescopic fork
Rear suspension
Oil damped coil spring

Brakes

Front brakes
Single disc
Rear brakes
Expanding brake (drum brake)
Front tyre
2.75-18
Rear tyre
3.50-18

Dimensions

Wheelbase
1320.00 mm
Length
2030.00 mm
Width
860.00 mm
Height
1080.00 mm
Fuel capacity
13.00 L
Dry weight
110.00 kg

Overview

Giantco clearly drew from an old engineer’s notebook to design this Bronco 125. In a market saturated with plastic and electronics, they produced a machine that smells of hot oil and raw steel, a declaration of independence on two wheels. With its 124 cc four-stroke single-cylinder engine, carburetor, and steel frame, it resembles a relic from the 1980s that escaped planned obsolescence. This approach is not a lack of ambition; it’s a manifesto.

Giantco Bronco 125

The engine is a lesson in simplicity. A bore of 56.5 mm for a stroke of 49.5 mm, a modest compression ratio of 9.2:1, all air-cooled: this is the recipe for indestructibility. The 10.3 horsepower arrives at 8600 rpm, the torque of 8.5 Nm at 7500, figures that do not promise great madness but a reassuring docility. All of this is paired with a four-speed transmission and a final drive by belt, a rare choice that promises flexibility and silence compared to a traditional chain.

The chassis follows the same stripped-down philosophy. The wheelbase of 1320 mm announces a quiet stability, while the dry weight of 110 kg suggests a maneuverable motorcycle. The suspension, telescopic fork and spring shock absorber, are basic but solid. The braking system combines a disc at the front and a drum at the rear, a configuration that is dated but does the job for modest speeds. The 18-inch tires and the 13-liter tank betray a lightweight, on-road and off-road vocation, a true machine for trouble-free kilometers.

Compared to the Honda CG 125 or the Yamaha YBR 125 of the time, the Bronco 125 does not seek performance or flashy style. It aims for pure utility, a frugal and easy-to-maintain road companion. It is aimed at those who are looking for a simple means of transportation, capable of descending a dirt road without drama, and whose mechanics can be repaired with three tools and a little common sense. It is a motorcycle that teaches you the basics without ever complicating your life.

In a world where every new product is an electronic gas factory, the Giantco Bronco 125 reminds us that a motorcycle can still be a simple and effective object. It won’t set crowds on fire on a circuit, but it could well become the favorite of the handyman, the urban delivery driver, or the apprentice globetrotter who still believes that adventure begins at the end of a wrench.

Indicators & positioning

🔧
Volumetric power
82.7 ch/L
In category Allround · 62-249cc displacement (1441 motorcycles compared)
Power 10 ch Top 66%
7 ch median 11 ch 24 ch

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