Moto Guzzi MGX-21 Flying Fortress (2016-17)

The Moto Guzzi MGX-21 Flying Fortress is a motorcycle model manufactured from 2016 to 2017. It is powered by a four-stroke, 90-degree V-twin engine with a capacity of 1380cc and a compression ratio of 10.5:1. The engine is air and oil-cooled and features a timed system diagram. Fuel is supplied via Magneti Marelli IAW7SM with ride-by-wire throttle and injectors. The bike has a maximum power of 96hp and maximum torque of 89ft/lb. The transmission has six speeds with final overdrive and a shaft final drive. The frame is made of double cradle tubular steel with detachable rear subframe. Suspension features a standard swingarm and a swingarm with double shock absorber at the rear. The brakes are Brembo with 320mm stainless steel floating discs at the front and a single 282mm stainless steel fixed disc at the rear. The wheels are spoked steel rims with an aluminium alloy front wheel and rear wheel. The bike has a length of 2445mm, width of 940mm, height of 1115mm, and a wheelbase of 1695mm. The seat height is 740mm, the ground clearance is 165mm, and the curb weight is 314kg. The fuel capacity is 20.5 liters with a reserve of 5 liters.

Technical specifications:

Make Model: Moto Guzzi MGX-21 Flying Fortress

Year: 2016 – 17

Engine: Four stroke, 90 degrees V-twin, SOHC, 4 valves per cylinder
Capacity: 1380 cc / 84.2 cu-in
Bore x Stroke: 104 x 81.2 mm
Cooling System: Air/ oil cooled
Compression Ratio: 10.5:1
Lubrication: Wet sump
Exhaust: Three-way catalyser with lambda probe
Timing System Diagram: Intake valve opens 19 degrees BTDC (1-mm checking clearance) intake valve closes 55 degrees ABDC exhaust valve opens 49 degrees BBDC exhaust valve closes 12 degrees ATDC
Fuel Supply: Magneti Marelli IAW7SM; ride by wire 52 mm throttle body, IWP 243 Magneti Marelli injectors, double oxygen sensor, integrated management of 3 engine mappings, traction control, cruise control
Ignition: Phased electronic Multipoint sequential injection
Spark Plugs: NGK LMAR8F, 2 per cylinder
Starting: Electric
Exhaust system: Stainless steel, 2-in-2 type, three-way catalytic converter with double lambda probe
Battery: 12V – 18 Ah
Alternator: 12 V – 550 W

Max Power: 96 hp / 71 kW @ 6500 rpm
Max Torque: 89 ft/lb / 120 Nm @ 2750 rpm
Clutch: Single-disc with integrated anti-vibration buffer
Transmission: 6 speeds with final overdrive
Final Drive: Shaft
Gear Ratio: 1st 17/38 = 1: 2.235 2nd 20/34 = 1: 1.700 3rd 23/31 = 1: 1.348 4th 26/29 = 1: 1.115 5th 31/30 = 1: 0.968 6th 30/24 = 1: 0.8
Primary Drive: 26/35 = 1: 1,346)
Final Drive Ratio: Double cardan joint and fixed bevel gear seat, drive ratio 10/36 = 1: 3.6)
Frame: Double cradle tubular frame in ALS steel with detachable rear subframe
Front Suspension: Standard swingarm, 46 mm, with radial calliper mounting bracket and telescopes on the stanchions,
Front Wheel Travel: 120 mm / 4.7 in
Rear Suspension: Swingarm with double shock absorber with adjustable spring preload.
Rear Wheel Travel: 110 mm / 4.3 in
Front Brakes: 2x 320 mm stainless steel floating discs, Brembo radial callipers with 4 horizontally opposed pistons
Rear Brakes: Single 282 mm stainless steel fixed disc, Brembo floating calliper with 2 parallel pistons
Wheels: Spoked steel rims
Front wheel: Aluminium alloy 3.50 x 18
Rear Wheel: Aluminium alloy 6.00 x 16
Front Tyre: 130/70 R18
Rear Tyre: 200/60 R16

Trail: 109 mm / 4.2 in
Steering Angle: 27 degrees50
Dimensions: Length 2445 mm / 90.2 in Width 940 mm / 37.0 in Height 1115 mm / 43.8 in
Wheelbase: 1695 mm / 66.7 in
Seat Height: 740 mm / 29.1 in
Ground Clearance: 165 mm / 6.4 in
Curb Weight: 314 kg / 701 lbs
Fuel Capacity: 20.5 Litres / 5.4 US gal
Reserve: 5 Litres / 1.3 gal

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