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 |
