Sport · 2008
DY125-B
MotoLibrary Score
34 /100 Commuter
Power/Weight
0.07 hp/kg
Engine
125 ccm
Technical Overview
2008 Dayun DY125-B Technical Analysis & Specification Breakdown
At the heart of the 2008 Dayun DY125-B sport motorcycle, Dayun relies on a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 6.9 HP (5 kW) at 7,500 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 55.2 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the DY125-B measures 105 kg (231 lbs) dry, translating to a power-to-weight ratio of 0.07 HP/kg (15.22 kg per horsepower).
Specific Output
55.2 HP/L
Power-to-Weight
0.07 HP/kg (15.22 kg/HP)
Engine
Displacement 125.0 ccm (7.63 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 6.9 HP (5.0 kW)) @ 7500 RPM
Fuel System Carburettor
Cooling Air
Transmission
Final Drive Chain (final drive)
Dimensions & Weight
Dry Weight 105.0 kg (231.5 pounds)
Power/Weight 0.0657 HP/kg
Overall Height 1070 mm (42.1 inches)
Overall Length 2100 mm (82.7 inches)
Overall Width 750 mm (29.5 inches)
Other
Color Options Red
Notes
Chinese bike.
More from Dayun
Rider Profile
Who Is This Bike For?
🟢
Beginner
A2 license compatible, manageable power.
🏁
Best For
Sport & Track
⚖️
Handling
Very lightweight — easy to handle
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