These are the known mechanical and performance specifications for your 2021 Aeon Cobra 400 EFI.
ModelAeon Cobra 400 EFI
Displacement346.0 ccm (21.11 cubic inches)
DetailsSingle cylinder, four-stroke
Bore/Stroke82.0 x 65.6 mm (3.2 x 2.6 inches)
Horespower20.1 HP (14.7 kW) @ 6000 RPM
Torque23.0 Nm (2.3 kgf-m or 17.0 ft.lbs) @ 6500 RPM
Fuel Economy & Polution
Fuel Capacity9.30 litres (2.46 US gallons)
Front SuspensionDouble wishbone
Seat Height800 mm (31.5 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1050 mm (41.3 inches)
Total Length1830 mm (72.0 inches)
Total Width1150 mm (45.3 inches)
Ground Clearance180 mm (7.1 inches)
Wheelbase1290 mm (50.8 inches)
Wet Weight243.0 kg (535.7 pounds)
Wheels & Brakes
Front BrakesDouble disc
Front Brake Diameter170 mm (6.7 inches)
Rear BrakesSingle disc
Rear Brake Diameter220 mm (8.7 inches)
It appears you're interested in specifications for the Aeon Cobra 400 EFI. This ATV model is powered by a Single cylinder, four-stroke engine with 346.0 ccm (21.11 cubic inches) of actual displacement before 10.6:1 compression. Fueling is metered via Injection allowing this machine to produce its 20.1 HP (14.7 kW) @ 6000 RPM horsepower and 23.0 Nm (2.3 kgf-m or 17.0 ft.lbs) @ 6500 RPM torque. According to our records engine heat of the Aeon Cobra 400 EFI is moderated by Liquid. You'll need to get familiar with the transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 21/7-10 and the rear is 20/10-9 . The entire package is supported by the frame, Tube. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Double disc front brakes and Single disc rear brakes. The Aeon Cobra 400 EFI was launched in 2021, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.