Positioned in Benelli's naked motorcycle lineup, the 2011 Benelli Tre-K 1130K Amazonas features a 1131 cc (69 cu in) liquid-cooled in-line three, four-stroke configuration. In factory specification, peak output is rated at 123.4 HP (90.1 kW) at 9,000 rpm while maximum torque reaches 115 Nm (84.8 lb-ft) at 6,250 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 109.1 HP per liter and a 2,750 rpm working window between peak torque (6,250 rpm) and peak power (9,000 rpm), 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 Tre-K 1130K Amazonas measures 205 kg (452 lbs) dry, translating to a power-to-weight ratio of 0.6 HP/kg (1.66 kg per horsepower). Rider ergonomics and chassis geometry center around a 840 mm (33.1 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,540 mm (60.6 in) wheelbase engineered for planted straight-line stability. The 22-liter (5.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Benelli archive, this model family spans 2 indexed model years from 2011 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
109.1 HP/L
Power-to-Weight
0.6 HP/kg (1.66 kg/HP)
Power Band Window
6,250–9,000 rpm
Standover Height
840 mm (33.1 in)
Engine
Displacement1131.0 ccm (69.01 cubic inches)
Engine TypeIn-line three, four-stroke
Engine DetailsAnti-vibration countershaft
Power123.4 HP (90.1 kW)) @ 9000 RPM
Torque115.0 Nm (11.7 kgf-m or 84.8 ft.lbs) @ 6250 RPM
Compression11.6:1
Bore x Stroke88.0 x 62.0 mm (3.5 x 2.4 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Performance
ExhaustWith catalytic converter and oxigen sensor
Chassis
Rake25.0°
Trail127 mm (5.0 inches)
Front SuspensionØ48 mm upside-down fork, with hydraulic extension / compression and spring preload adjustments
Rear SuspensionSteel trestle swingarm, progressive rear dumper with hydraulic extension and spring preload adjustments
Wheelbase1540 mm (60.6 inches)
Wheels & Brakes
Front Tyre110/80-R19
Rear Tyre150/70-R17
Front BrakesDouble disc
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
WheelsDie-cast aluminium alloy
Dimensions & Weight
Dry Weight205.0 kg (451.9 pounds)
Power/Weight0.6018 HP/kg
Seat Height840 mm (33.1 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.
