Naked Motorcycles
2018Ducati Monster 821
42 fields on record
The 2018 Ducati Monster 821 is a middleweight naked bike that appeals to both new and experienced riders seeking accessible performance with genuine character. Its air-cooled Testastretta L-Twin engine delivers approachable power, while three riding modes and traction control provide modern safety features. Known for its aggressive styling, nimble handling, and Ducati heritage, it excels as an everyday street bike with sporty credentials.
- Capacity
- 821.0 ccm
- Engine
- V -Twin twin, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 206.0 kg
- Seat height
- 785 mm
- Power
- 109.0 HP (79.6 kW) @ 9250 RPM
What’s new for the 2018 Ducati Monster 821
vs the 2017| Spec | 2017 | 2018 |
|---|---|---|
| Engine capacity | 821.00 ccm (50.10 cubic inches) | 821.0 ccm (50.10 cubic inches) |
| Power | 112.00 HP (81.8 kW) @ 9250 RPM | 109.0 HP (79.6 kW) @ 9250 RPM |
| Torque | 89.40 Nm (9.1 kgf-m or 65.9 ft.lbs) @ 7750 RPM | 86.0 Nm (8.8 kgf-m or 63.4 ft.lbs) @ 7750 RPM |
| Weight | 179.5 kg (395.7 pounds) | 206.0 kg (454.2 pounds) |
| Fuel capacity | 17.50 litres (4.62 gallons) | 17.50 litres (4.62 US gallons) |
| Wheelbase | 1,480 mm (58.3 inches) | 1480 mm (58.3 inches) |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for spirited road riding and weekend canyon carving, blending Ducati performance with everyday usability.
- Built for
- Delivers a raw, characterful V-twin experience with strong torque, sharp handling, and unmistakable Ducati attitude.
- Not ideal for
- Not the right choice for riders seeking a plush touring companion, off-road capability, or a beginner-friendly first big bike.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 821.0 ccm
- Power
- 109.0 HP (79.6 kW) @ 9250 RPM
- CO2 Emissions
- 4 CO2 g/km
- Torque
- 86.0 Nm (8.8 kgf-m) @ 7750 RPM
- Engine type
- V -Twin twin, four-stroke
- Power/weight ratio
- 0.5291 HP/kg
- Bore x stroke
- 88.0 x 67.5 mm
- Compression
- 12.8:1
- Cooling system
- Air
- Fuel system
- Injection
- Starting
- Electric
- Valves per cylinder
- 4
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- APTC slipper and self-servo wet multiplate clutch with control cable
Performance
- 0-60 mph
- 3.10 seconds
- 0-100 km/h (0-62 mph)
- 3.40 seconds
Dimensions & weight
- Wheelbase
- 1480 mm
- Overall length
- 2170 mm
- Overall width
- 800 mm
- Overall height
- 1055 mm
- Seat height
- 785 mm
- Wet weight
- 206.0 kg
- Fuel capacity
- 17.50 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Tubular steel Trellis frame attached to the cylinders head
- Front suspension
- 43mm upside-down forks
- Rear suspension
- Progressive linkage with adjustable monoshock. Aluminium double-sided swingarm
- Front wheel travel
- 130 mm
- Rear wheel travel
- 140 mm
- Rake (fork angle)
- 24.3°
- Trail
- 93 mm
Brakes & wheels
- Front brakes
- Double disc. Semi-floating discs, radially mounted Monobloc Brembo M4-32 callipers, 4-pistons, axiial pump with ABS as standard
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc. 2-piston floating calliper with ABS as standard equipment
- Rear brakes diameter
- 245 mm
- Front tyre
- 120/70-ZR17
- Rear tyre
- 180/55-ZR17
Other
- Color options
- Dark Stealth, Ducati Red, Ducati Yellow
- Warranty
- 24
- Comments
- Three Riding Modes. Traction Control.
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2015 | 2016 | 2018 | 2019 | 2020 |
|---|---|---|---|---|---|
| Capacity | 821.00 ccm (50.10 cubic inches) | 821.00 ccm (50.10 cubic inches) | 821.00 ccm (50.10 cubic inches) | 821.0 ccm (50.10 cubic inches) | 821.0 ccm (50.10 cubic inches) |
| Dry weight | 179.5 kg (395.7 pounds) | 179.5 kg (395.7 pounds) | — | 180.0 kg (396.8 pounds) | 180.5 kg (397.9 pounds) |
| Seat height | 785 mm (30.9 inches) | 785 mm (30.9 inches) | 785 mm (30.9 inches) | 785 mm (30.9 inches) | 785 mm (30.9 inches) |
| Fuel capacity | 17.50 litres (4.62 gallons) | 17.50 litres (4.62 gallons) | 17.50 litres (4.62 gallons) | 16.50 litres (4.36 US gallons) | 16.50 litres (4.36 US gallons) |
| Color options | White, red | Star White Silk, Red | Dark Stealth, Ducati Red, Ducati Yellow | Dark Stealth, Ducati Red, Ducati Yellow | Ducati Red |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Safety Recalls
⚠ 3 open recallsSERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGSMay 2021 · 21V335000
Ducati North America (Ducati) is recalling certain 2015-2021 Monster 821, 2014-2021 Monster 1200 S/STD, and 2016-2019 Monster 1200 R motorcycles. The rear brake hoses may be susceptible to heat damage.
Risk: Damaged brake hoses may cause the rear brakes to fail, increasing the risk of a crash.
Remedy: Dealers will replace the rear brake hoses, free of charge. Owner notification letters were mailed on July 12, 2021. Owners may contact Ducati customer service at 1-888-391-5446.
SERVICE BRAKES, HYDRAULICMay 2021 · 21V315000
Ducati North America (Ducati) is recalling certain 2017-2020 Monster 797, Monster 1200, Supersport, 2016-2020 XDiavel, and 2018-2020 Monster 821 motorcycles. Air may permeate the rear brake system.
Risk: Air in the system may reduce effectiveness of the rear brakes, increasing the distance required to stop and the risk of a crash.
Remedy: Dealers will install new rear brake hoses, free of charge. Owner notification letters were mailed on June 28, 2021. Owners may contact Ducati customer service at 1-888-391-5446.
POWER TRAIN:MANUAL TRANSMISSIONNov 2018 · 18V835000
Ducati North America (Ducati) is recalling certain 2017-2019 Ducati Monster 1200, Monster 821, SuperSport and SuperSport S motorcycles. The shift lever may have been incorrectly assembled, possibly resulting in the shift knob detaching from the lever.
Risk: If the shift knob detaches, the rider may not be able to shift gears, increasing the risk of a crash.
Remedy: Ducati will notify owners, and dealers will inspect the gear lever shift knob tightness, replacing it as necessary, free of charge. The recall began January 14, 2019. Owners may contact Ducati customer service at 1-888-391-5446. Ducati's number for this recall is SRV-RCL-18-007.
Source: NHTSA. View all Ducati recalls →
Rider Reviews
Common questions
What is the engine size of the Ducati Monster 821?
The 2018 Ducati Monster 821 has a Capacity of 821.0 ccm (50.10 cubic inches).
What engine power does the Ducati Monster 821 have?
The 2018 Ducati Monster 821 has a Power of 109.0 HP (79.6 kW) @ 9250 RPM.
How many gears does the Ducati Monster 821 have?
The 2018 Ducati Monster 821 has a Gearbox of 6-speed.
What is the torque of the Ducati Monster 821?
The 2018 Ducati Monster 821 has a Torque of 86.0 Nm (8.8 kgf-m or 63.4 ft.lbs) @ 7750 RPM.
How much does the Ducati Monster 821 weigh?
The 2018 Ducati Monster 821 has a Wet weight of 206.0 kg (454.2 pounds).
Shop this bike
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The 2018 Ducati Monster 821 is a powerful and stylish motorcycle that offers a thrilling ride for motorcycle enthusiasts. With its 821cc engine, it delivers impressive acceleration and handling, making it a joy to ride on both city streets and winding roads. The aggressive design and high-quality components make the Monster 821 stand out from other motorcycles in its class, while the comfortable riding position and advanced technology ensure a smooth and enjoyable riding experience.
Overall, the 2018 Ducati Monster 821 is a superb option for riders looking for a combination of performance, style, and comfort. Its strong engine, agile handling, and attractive design make it a standout choice in the middleweight naked bike category. Whether you're a seasoned rider or a newcomer to the world of motorcycles, the Monster 821 is sure to impress with its impressive performance and sleek Italian styling.
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