Positioned in Gilera's allround motorcycle lineup, the 1966 Gilera Ekstra 4 pairs a 305 cc (18.6 cu in) air-cooled twin, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 15 HP (10.9 kW) at 8,000 rpm. With a specific output of 49.2 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
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 1,330 mm (52.4 in) wheelbase engineered for quick, flickable steering geometry. The 19-liter (5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 125 km/h (78 mph).
Within MotoLibrary's Gilera archive, this model family spans 5 indexed model years from 1964 to 1968, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
49.2 HP/L
Standover Height
750 mm (29.5 in)
Engine
Displacement305.0 ccm (18.61 cubic inches)
Engine TypeTwin, four-stroke
Engine DetailsTwin, four-stroke
Power15.0 HP (10.9 kW)) @ 8000 RPM
Fuel SystemCarburettor. DellÓrto
CoolingAir
Performance
Top Speed125.0 km/h (77.7 mph)
Chassis
Front SuspensionHydralic telescopic forks
Rear SuspensionTwin shock
Wheelbase1330 mm (52.4 inches)
Wheels & Brakes
Front BrakesExpanding brake (drum brake)
Front Brake Ø150 mm (5.9 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø150 mm (5.9 inches)
Dimensions & Weight
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.
