The legendary Halley name returns to the world of motorcycling with a thrilling twist: the Gas Gas SM 125 Halley, a supermotard born out of the iconic trial bike’s legacy. This high-performance machine boasts a 124cc one-cylinder two-stroke engine, producing around 15 horsepower and delivering an exhilarating riding experience.
Equipped with a liquid-cooled six-speed transmission and a 27mm carburettor, this lightweight supermotard weighs in at just 100kg and features a spacious 9.5-litre fuel tank for extended adventures on the trail.
The Gas Gas SM 125 Halley is poised to conquer the world of supermoto with its agile handling, responsive power delivery, and unmistakable two-stroke charm. And as the first model in the new range, it promises to set a high standard for performance and excitement.
Key Specifications
Engine Type
Two stroke, single cylinder
Engine Capacity
7.6 cubic inches / 124 cc
Max Power
36.8 hp /26.9kW @ 10000 rpm
Max Torque
18.6 ft-lb / 25 nm
Fuel Tank Capacity
2.5 US gallons / 9.5 L
Seat Height
37.0 inches / 940 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
Gas Gas SM 125 Halley
Year
2009
Engine
Engine Type
Two stroke, single cylinder
Displacement
7.6 cubic inches / 124 cc
Bore x Stroke
54.5 x 54 mm
Max Horsepower
36.8 hp /26.9kW @ 10000 rpm
Max Torque
18.6 ft-lb / 25 nm
Engine Management System
Keihin PWK.Carburettor
Cooling System
Liquid cooled
Performance
Top Speed
n/a
*n/a – information not provided by manufacturer
Transmission
Gearbox
6 Speed
Final Drive
Chain
Electrical & Electronics System
Chassis & Suspension
Frame Type
Deltabox type built using cromoly, rectangular tubes, aluminum swingarm
Front Suspension
45mm Marzocchi
Front Suspension Travel
11.6 inches / 295 mm
Rear Suspension
Progressive system with hlins shock absorber
Rear Suspension Travel
12.6 inches / 320 mm
Wheels & Brakes
Front Tire Size
120/60 -17
Rear Tire Size
150/60 -17
Front Brakes
Single 260mm disc 2 piston caliper
Rear Brakes
Single 220mm disc 1 piston caliper
Dimension & Weights
Seat Height
37.0 inches / 940 mm
Wheelbase
58.1 inches / 1475 mm
Ground Clearance
340 mm / 13.4 in
Fuel Tank Capacity
2.5 US gallons / 9.5 L
Dry Weight
95 kg / 209.4 lbs
Features
Hyosung-derived 124 cc one-cylinder two stroke engine
Liquid cooled
Six speed shift
27mm carburettor
9.5 litre fuel tank
Weighs 100kg
Prototype with about 15 hp output
Supermotard version of the original Halley model
*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
