Moto Guzzi MGX-21 - 2018 Specifications and Reviews

The 2018 Moto Guzzi MGX-21 is a cruiser designed for riders seeking classic Italian styling with modern reliability. Its low 740mm seat height and relaxed geometry make it accessible to various rider sizes, while the air-cooled V2 engine delivers characteristic Guzzi character ideal for leisurely highway cruising and urban commuting.

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General information

CategoryCustom / cruiser
Year2018
ModelMoto Guzzi MGX-21
 
 

Engine and Transmission Specifications

Exhaust systemBlack stainless steel, 2 in 2 with crossover and 3 - way catalytic converter, double lambda probe
ClutchDry single plate with flexible couplings
Transmission type,final driveShaft drive (cardan)
Gearbox6-speed
Cooling systemOil & air
Fuel systemInjection. Weber-Marelli electronic fuel injection.
Valves per cylinder2
Bore x Stroke104.0 x 81.2 mm (4.1 x 3.2 inches)
Compression10.5:1
Torque121.00 Nm (12.3 kgf-m or 89.2 ft.lbs) @ 3000 RPM
Power96.50 HP (70.4 kW) @ 6500 RPM
Engine details90° transverse V-twin. Dual sparks.
Engine typeV2, four-stroke
 
 

Brakes, suspension, Frame and wheels

WheelsCast aluminium
Rear brakes diameter282 mm (11.1 inches)
Rear brakesSingle disc. ABS
Front brakes diameter320 mm (12.6 inches)
Front brakesDouble disc. ABS
Rear tyre180/60-16
Front tyre120/70-21
Rear wheel travel120 mm (4.7 inches)
Rear SuspensionSwingarm with double shock absorber with adjustable spring preload
Front wheel travel108 mm (4.2 inches)
Front SuspensionTelescopic fork
Trail187 mm (7.4 inches)
Rake (fork angle)32.0°
Frame typeDouble cradle tubular frame in ALS steel with detachable rear subframe

Physical measures and capacities

Reserve fuel capacity5.00 litres (1.32 gallons)
Fuel capacity20.50 litres (5.42 gallons)
Wheelbase1,700 mm (66.9 inches)
Ground clearance185 mm (7.3 inches)
Overall width920 mm (36.2 inches)
Overall length2,560 mm (100.8 inches)
Overall height1,275 mm (50.2 inches)
Seat height740 mm (29.1 inches) If adjustable, lowest setting.
Power/weight ratio0.2830 HP/kg
Dry weight341.0 kg (751.8 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric
Color optionsGrey

Performance Profile & Rider Fit

96.6 hp
Peak Power
4.8s
0-60 mph

Best For

Track15%
City40%
Cornering40%
Daily Riding55%
Touring62%
Passenger60%

Rider Profile

Best ForBest suited to riders with some prior experience handling heavy, long-wheelbase cruisers, given the 341kg weight and 21-inch front wheel steering feel.
PurposeBuilt as a bold power-cruiser and boulevard bagger, blending Moto Guzzi's shaft-drive V-twin heritage with an exaggerated fat-front-wheel custom stance.
Rider FitThe low 740mm seat height helps shorter riders at a stop, but the substantial mass and long wheelbase demand decent upper body strength for slow-speed maneuvers and parking.
CharacterA charismatic, torque-rich cruiser that rewards relaxed, confident riding over aggressive cornering, with distinctive transverse V-twin pulses and shaft-drive smoothness.
Not Ideal ForNot the right choice for riders seeking sharp agility, off-road capability, or lightweight everyday commuting.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2018 Moto Guzzi MGX-21 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 740mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2018 Moto Guzzi MGX-21, with a cramped knee angle of around 80 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2018 Moto Guzzi MGX-21 is a sleek and powerful motorcycle that offers a unique riding experience. With its bold and futuristic design, this bike is sure to turn heads on the road. The 1380cc engine provides plenty of power, while the comfortable seating position and advanced suspension make for a smooth and enjoyable ride. Whether you're cruising around town or hitting the open highway, the MGX-21 delivers a thrilling performance that is sure to impress any motorcycle enthusiast. In addition to its eye-catching design and powerful engine, the 2018 Moto Guzzi MGX-21 also boasts a range of high-tech features. From its advanced electronic rider aids to its cutting-edge infotainment system, this bike is packed with innovative technology. With its combination of style, performance, and advanced features, the MGX-21 is a standout choice for riders looking for a truly unique and exhilarating riding experience.
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