Giantco HY125: history, specs, pictures

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Giantco HY125
Manufacturer
Also called HY125-3C
Production 2012
Engine
single cylinder, four-stroke
Bore / Stroke 56.6mm x 56.6mm
Horsepower 9.66 HP (7.2 KW) @ 8000RPM
Torque 6.49 ft/lbs (8.8 Nm) @ 7500RPM
Fuel System carburetor
Ignition cdi
Transmission Gear box: 5-speed
Final Drive: chain
Suspension Front: oil damped telescopic fork
Rear: oil damped coil spring
Brakes Front: single disc
Rear: expanding brake (drum brake)
Front Tire 90/90-18
Rear Tire 110/90-18
Wheelbase 50.59 inches (1285 mm)
Length 79.33 inches (2015 mm)
Width 29.53 inches (750 mm)
Height 42.32 inches (1075 mm)
Weight 246.92 pounds (112.0 Kg) (dry),
Oil Capacity 0.26 Gallon (1.00 Liters)
Fuel Capacity 3.7 Gallon (14.00 Liters)
Manuals Service Manual


The Giantco HY125-3C was a single cylinder, four-stroke standard produced by Giantco in 2012. Max torque was 6.49 ft/lbs (8.8 Nm) @ 7500 RPM. Claimed horsepower was 9.66 HP (7.2 KW) @ 8000 RPM.

Engine[edit | edit source]

The engine was a air cooled single cylinder, four-stroke. A 56.6mm bore x 56.6mm stroke result in a displacement of just 124.6 cubic centimeters. Fuel was supplied via a overhead valves (ohv).

Drive[edit | edit source]

The bike has a 5-speed transmission.

Chassis[edit | edit source]

It came with a 90/90-18 front tire and a 110/90-18 rear tire. Stopping was achieved via single disc in the front and a expanding brake (drum brake) in the rear. The front suspension was a oil damped telescopic fork while the rear was equipped with a oil damped coil spring. The HY125-3C was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The bike weighed just 246.92 pounds (112.0 Kg). The wheelbase was 50.59 inches (1285 mm) long.