Positioned in Ajs's allround motorcycle lineup, the 2020 Ajs Isaba 125 pairs a 124.5 cc (7.6 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 10.7 HP (7.8 kW) at 9,500 rpm while maximum torque reaches 8.7 Nm (6.4 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 85.9 HP per liter and a 1,500 rpm working window between peak torque (8,000 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 Isaba 125 measures 136 kg (300 lbs) dry, translating to a power-to-weight ratio of 0.08 HP/kg (12.71 kg per horsepower). Rider ergonomics and chassis geometry center around a 760 mm (29.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,360 mm (53.5 in) wheelbase engineered for quick, flickable steering geometry. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 97 km/h (60 mph).
Specific Output
85.9 HP/L
Power-to-Weight
0.08 HP/kg (12.71 kg/HP)
Power Band Window
8,000–9,500 rpm
Standover Height
760 mm (29.9 in)
Engine
Displacement124.5 ccm (7.60 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power10.7 HP (7.8 kW)) @ 9500 RPM
Torque8.7 Nm (0.9 kgf-m or 6.4 ft.lbs) @ 8000 RPM
Compression9.3:1
Bore x Stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Fuel SystemInjection
Fuel ControlOverhead Cams (OHC)
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, multiplate
Performance
Top Speed96.6 km/h (60.0 mph)
Emission DetailsEuro 4
ExhaustStainless steel
Chassis
Frame TypeSteel
Front SuspensionTelescopic fork
Rear SuspensionDual shocks
Wheelbase1360 mm (53.5 inches)
Wheels & Brakes
Front Tyre100/80-17
Rear Tyre120/70-17
Front BrakesDouble disc
Front Brake Ø280 mm (11.0 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
WheelsBlack alloy wheel rims
Dimensions & Weight
Dry Weight136.0 kg (299.8 pounds)
Power/Weight0.0789 HP/kg
Seat Height760 mm (29.9 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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
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.
