14 August. Friday 2026
Ducati Monster 821 Stealth - 2020 Specifications and Reviews
The 2020 Ducati Monster 821 Stealth is a nimble, accessible middleweight naked bike ideal for riders seeking manageable performance with classic Italian styling. Known for its approachable 109 horsepower, lightweight chassis, and low seat height, it delivers everyday thrills without overwhelming complexity. Perfect for commuters and enthusiasts wanting authentic Monster character in a user-friendly package.
2020
General information | |
| Category | Naked bike |
| Year | 2020 |
| Model | Ducati Monster 821 Stealth |
| | |
Engine and Transmission Specifications | |
| Exhaust system | Stainless steel muffler and aluminium and cap; lightweight 2-1 system with catalytic converter with 2 lambda probes |
| Emission details | Euro 4 |
| Greenhouse gases | 125.3 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 5.40 litres/100 km (18.5 km/l or 43.56 mpg) |
| Clutch | APTC slipper and self-servo wet multiplate clutch with control cable |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Fuel control | Desmodromic valve control |
| Fuel system | Injection. 53mm throttle bodies with full Ride by Wire |
| Valves per Cylinder | 4 |
| Bore x Stroke | 88.0 x 67.5 mm (3.5 x 2.7 inches) |
| Compression | 12.8:1 |
| Torque | 86.0 Nm (8.8 kgf-m or 63.4 ft.lbs) @ 7750 RPM |
| Power | 109.0 HP (79.6 kW) @ 9250 RPM |
| Engine details | Testastretta 11° L-Twin |
| Engine type | V2, four-stroke |
| Capacity: | 821.0 ccm (50.10 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Seat | Dual seat |
| Wheels | 10-spoke in light alloy. Pirelli Diablo Rosso II tyres. |
| Rear brakes | Single disc. 2-piston floating calliper with ABS as standard equipment |
| Diameter | 320 mm (12.6 inches) |
| Front brakes | Double disc. Semi-floating discs, radially mounted Monobloc Brembo M4-32 callipers, 4-pistons, axiial pump with ABS as standard |
| Rear tire | 180/55-ZR17 |
| Front tire | 120/70-ZR17 |
| Rear wheel travel | 140 mm (5.5 inches) |
| Rear Suspension | Progressive linkage with adjustable monoshock. Aluminium double-sided swingarm |
| Front wheel travel | 130 mm (5.1 inches) |
| Front Suspension | 43mm upside-down forks |
| Trail | 93 mm (3.7 inches) |
| Rake (fork angle) | 24.3° |
| Frame type | Tubular steel Trellis frame attached to the cylinders head |
| | |
Physical measures and capacities | |
| Fuel capacity | 16.50 litres (4.36 US gallons) |
| Wheelbase | 1480 mm (58.3 inches) |
| Overall width | 800 mm (31.5 inches) |
| Overall length | 2170 mm (85.4 inches) |
| Overall height | 1055 mm (41.5 inches) |
| Alternate seat height | 810 mm (31.9 inches) If adjustable, highest setting. |
| Seat height | 785 mm (30.9 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.6039 HP/kg |
| Weight incl. oil, gas, etc | 205.0 kg (451.9 pounds) |
| Dry weight | 180.5 kg (397.9 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Factory warranty | 24 months unlimited mileage |
| Instruments | LCD display |
| Starter | Electric |
| Color options | Stealth |
Performance Profile & Rider Fit
109 hp
Peak Power
3.3s
0-60 mph
Best For
Track65%
City80%
Cornering92%
Daily Riding70%
Touring38%
Passenger45%
Rider Profile
| Best For | Best suited to intermediate or experienced riders who can manage a punchy, torquey V-twin with sharp, immediate responses. |
| Purpose | Built for spirited street riding and twisty back roads where its light weight and strong midrange power can be fully exploited. |
| Rider Fit | The low-ish seat height and compact, upright naked-bike stance suit a range of body sizes, though the firm sporty suspension favors riders comfortable with a slightly aggressive posture. |
| Character | A raw, characterful Italian streetfighter that rewards confident throttle input with an engaging, muscular V-twin feel and razor-sharp handling. |
| Not Ideal For | Not ideal for riders seeking long-distance comfort, wind protection, or a plush, relaxed touring experience. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2020 Ducati Monster 821 Stealth is a sleek and powerful motorcycle that offers riders a thrilling experience on the road. With its 821cc engine and lightweight chassis, this bike delivers impressive performance and handling. The Stealth edition features a dark and stylish black color scheme, giving it a bold and edgy look that stands out on the street. The comfortable riding position and advanced electronics make this bike suitable for both experienced riders and those new to the sport. Overall, the 2020 Ducati Monster 821 Stealth is a top-of-the-line motorcycle that offers an exhilarating ride and impressive features. Whether you're a seasoned rider or a newcomer to the sport, this bike delivers a thrilling experience on the road. With its powerful engine, advanced electronics, and stylish design, the Monster 821 Stealth is a standout choice in the world of motorcycles.Add a Comment
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