Engineered by Suzuki for the sport motorcycle segment, the 2017 Suzuki GS 125 utilizes a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 12 HP (8.8 kW) at 9,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 96.8 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 GS 125 measures 122 kg (269 lbs) wet (curb), translating to a power-to-weight ratio of 0.1 HP/kg (10.17 kg per horsepower). Rider ergonomics and chassis geometry center around a 750 mm (29.5 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,265 mm (49.8 in) wheelbase engineered for quick, flickable steering geometry. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Suzuki archive, this model family spans 2 indexed model years from 2016 to 2017, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
96.8 HP/L
Power-to-Weight
0.1 HP/kg (10.17 kg/HP)
Standover Height
750 mm (29.5 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power12.0 HP (8.8 kW)) @ 9500 RPM
Compression9.2:1
Bore x Stroke57.0 x 48.8 mm (2.2 x 1.9 inches)
Valves/Cylinder2
Fuel SystemCarburettor. Mikuni BS26SS
Fuel ControlSingle Overhead Cams (SOHC)
LubricationWet sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, multi-disc
Chassis
Front SuspensionTelescopic
Rear SuspensionTwin shock, adjustable
Wheelbase1265 mm (49.8 inches)
Ground Clearance160 mm (6.3 inches)
Wheels & Brakes
Front Tyre2.75-18
Rear Tyre90/90-18
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
WheelsAluminium rims, black 5-spoke
Dimensions & Weight
Weight incl.122.0 kg (269.0 pounds)
Seat Height750 mm (29.5 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.
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.
