Engineered by Yuki for the custom - cruiser motorcycle segment, the 2010 Yuki 125 Spider relies on a 125 cc (7.6 cu in) single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 10.5 HP (7.6 kW) at 9,500 rpm while maximum torque reaches 8.2 Nm (6 lb-ft) at 7,000 rpm. With a specific output of 84 HP per liter and a 2,500 rpm working window between peak torque (7,000 rpm) and peak power (9,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the 125 Spider measures 191 kg (421 lbs) wet (curb), translating to a power-to-weight ratio of 0.05 HP/kg (18.19 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,850 mm (72.8 in) wheelbase engineered for planted straight-line stability. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
84 HP/L
Power-to-Weight
0.05 HP/kg (18.19 kg/HP)
Power Band Window
7,000–9,500 rpm
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power10.5 HP (7.6 kW)) @ 9500 RPM
Torque8.2 Nm (0.8 kgf-m or 6.0 ft.lbs) @ 7000 RPM
Compression9.2:1
Bore x Stroke44.0 x 41.0 mm (1.7 x 1.6 inches)
Fuel SystemCarburettor
IgnitionCDI
Chassis
Frame TypeSteel
Wheelbase1850 mm (72.8 inches)
Wheels & Brakes
Front Tyre80/90-21
Rear Tyre160/80-16
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Weight incl.191.0 kg (421.1 pounds)
Overall Height1100 mm (43.3 inches)
Overall Length2600 mm (102.4 inches)
Overall Width870 mm (34.3 inches)
Fuel Capacity13.00 litres (3.43 US gallons)
Other
StarterElectric
Color OptionsRed, black, silver/black
Notes
Yuki bikez are sold in The Czech Republic and The Slovak Republic.
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
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.
