2008 Derbi Terra Adventure 125 Technical Analysis & Specification Breakdown
At the heart of the 2008 Derbi Terra Adventure 125 enduro - offroad motorcycle, Derbi utilizes a 124.2 cc (7.6 cu in) single cylinder, four-stroke layout. In factory specification, peak output is rated at 15 HP (10.9 kW) at 9,250 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 120.8 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the Terra Adventure 125 measures 117 kg (258 lbs) dry, translating to a power-to-weight ratio of 0.13 HP/kg (7.8 kg per horsepower). Rider ergonomics and chassis geometry center around a 795 mm (31.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,454 mm (57.2 in) wheelbase engineered for balanced agility and highway composure. The 11-liter (2.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Derbi archive, this model family spans 9 indexed model years from 2008 to 2017, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
120.8 HP/L
Power-to-Weight
0.13 HP/kg (7.8 kg/HP)
Standover Height
795 mm (31.3 in)
Engine
Displacement124.2 ccm (7.58 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power15.0 HP (10.9 kW)) @ 9250 RPM
Compression12.0:1
Bore x Stroke58.0 x 47.0 mm (2.3 x 1.9 inches)
Valves/Cylinder4
Fuel SystemCarburettor
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionElectronic CDI
LubricationDry sump
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchMulti-plate
Chassis
Frame TypeDouble steel beam
Front SuspensionHydraulic fork
Front Travel41 mm (1.6 inches)
Rear SuspensionMono-shock with adjustable spring pre-load. 150 mm travel
Wheelbase1454 mm (57.2 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre120/90-17
Front BrakesSingle disc
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Dry Weight117.0 kg (257.9 pounds)
Power/Weight0.1282 HP/kg
Seat Height795 mm (31.3 inches) If adjustable, lowest setting.
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.
