GAS GAS Halley 125: history, specs, pictures

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GAS GAS Halley 125
Manufacturer
Also called Halley 125 4T, Halley 125 2T
Production 2009 - 2010
Engine
single cylinder, four-stroke
Bore / Stroke 54.0mm x 54.5mm
Fuel System carburetor. 26 mm
Transmission Gear box: 6-speed

Final Drive: chain

Clutch: multidisc hydraulically operated
Suspension Front: fork, 41 mm.
Rear: one-piece aluminum swing arm
Brakes Front: single disc. 2-piston caliper.
Rear: single disc. single-piston
Front Tire 2.75-21
Rear Tire 4.10-18
Wheelbase 57.48 inches (1460 mm)
Seat Height 37.2 inches (945 mm)
Weight 218.26 pounds (99.0 Kg) (dry), 107.0 kg (wet)
Fuel Capacity 1.95 Gallon (7.40 Liters)
Manuals Service Manual


The GAS GAS Halley 125 4T was a single cylinder, four-stroke standard produced by GAS GAS between 2009 and 2010.

Engine[edit | edit source]

The engine was a air cooled single cylinder, four-stroke. A 54.0mm bore x 54.5mm stroke result in a displacement of just 124.0 cubic centimeters.

Drive[edit | edit source]

The bike has a 6-speed transmission. Power was moderated via the multidisc hydraulically operated.

Chassis[edit | edit source]

It came with a 2.75-21 front tire and a 4.10-18 rear tire. Stopping was achieved via single disc. 2-piston caliper. in the front and a single disc. single-piston in the rear. The front suspension was a fork, 41 mm. while the rear was equipped with a one-piece aluminum swing arm. The Halley 125 4T was fitted with a 1.95 Gallon (7.40 Liters) fuel tank. The bike weighed just 218.26 pounds (99.0 Kg). The wheelbase was 57.48 inches (1460 mm) long.