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← Skyteam
Minibike, cross · 2005

ST125

Euro 1490. MSRP depends on country, taxes, accessories, etc.
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MotoLibrary Score
36 /100 Commuter
Power/Weight
0.1 hp/kg
Top Speed
85 km/h
Engine
123 ccm

2005 Skyteam ST125 Technical Analysis & Specification Breakdown

Engineered by Skyteam for the minibike, cross motorcycle segment, the 2005 Skyteam ST125 features a 123 cc (7.5 cu in) air-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 9.7 HP (7.1 kW) at 8,500 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 78.9 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the ST125 measures 94 kg (207 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (9.69 kg per horsepower). Rider ergonomics and chassis geometry center around a 700 mm (27.6 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops. The 3.1-liter (0.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 85 km/h (53 mph).

Specific Output
78.9 HP/L
Power-to-Weight
0.1 HP/kg (9.69 kg/HP)
Standover Height
700 mm (27.6 in)
Engine
Displacement 123.0 ccm (7.51 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 9.7 HP (7.1 kW)) @ 8500 RPM
Compression 9.0:1
Bore x Stroke 56.4 x 49.5 mm (2.2 x 1.9 inches)
Valves/Cylinder 2
Fuel System Carburettor
Fuel Control Overhead Valves (OHV)
Ignition CDI
Lubrication Wet sump
Cooling Air
Transmission
Gearbox 4-speed
Final Drive Chain (final drive)
Clutch Wet plate
Performance
Top Speed 85.0 km/h (52.8 mph)
Exhaust One underseat pipe
Chassis
Frame Type Aluminium Pipe Frame
Front Suspension Telescopic forks
Rear Suspension Monoshock
Wheels & Brakes
Front Tyre 3.00-10
Rear Tyre 3.00-10
Front Brakes Single disc. 2-piston calipers
Front Brake Ø 100 mm (3.9 inches)
Rear Brakes Single disc. 2-piston calipers
Rear Brake Ø 80 mm (3.1 inches)
Dimensions & Weight
Dry Weight 94.0 kg (207.2 pounds)
Power/Weight 0.1028 HP/kg
Seat Height 700 mm (27.6 inches) If adjustable, lowest setting.
Overall Height 980 mm (38.6 inches)
Overall Length 1600 mm (63.0 inches)
Overall Width 760 mm (29.9 inches)
Fuel Capacity 3.10 litres (0.82 US gallons)
Other
Starter Electric & kick
Electrical 12V 6Ah battery
Notes

The Skyteam ´pro´ is a great toy, it wheelies very easily with just the turn of your hand and stops very neatly with the disc brakes.

More from Skyteam
Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🌲
Best For
Off-Road & Adventure
📏
Seat Height
70 cm / 27.6 in
⚖️
Handling
Very lightweight — easy to handle
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