Naked Motorcycles
2015Ducati Monster 821 Dark
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The 2015 Ducati Monster 821 Dark is an agile middleweight naked bike that appeals to riders seeking responsive handling and Ducati's iconic L-twin character in a manageable package. Known for its aggressive styling, compact dimensions, and impressive power-to-weight ratio, it delivers spirited performance with genuine everyday usability and approachable ergonomics.
- Capacity
- 821.0 ccm
- Engine
- V-Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 179.5 kg
- Seat height
- 785 mm
- Power
- 112.0 HP (81.8 kW) @ 9250 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed for spirited street riding and weekend canyon carving rather than long-distance touring or off-road use.
- Built for
- Aggressive, raw, and characterful, with strong midrange torque and a growling air-cooled V2 that rewards an assertive riding style.
- Not ideal for
- Not ideal for riders seeking wind protection, plush comfort on long highway stints, or any serious off-road capability.
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
- 112.0 HP (81.8 kW) @ 9250 RPM
- CO2 Emissions
- 3 CO2 g/km
- Torque
- 89.4 Nm (9.1 kgf-m) @ 7750 RPM
- Engine type
- V-Twin, four-stroke
- Power/weight ratio
- 0.6240 HP/kg (dry)
- 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
Dimensions & weight
- Wheelbase
- 1480 mm
- Overall length
- 2170 mm
- Overall width
- 800 mm
- Overall height
- 1055 mm
- Seat height
- 785 mm
- Dry weight
- 179.5 kg
- Wet weight
- 205.5 kg
- Fuel capacity
- 17.50 litres
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)
- 24.0°
- Trail
- 87 mm
Brakes & wheels
- Front brakes
- Double disc. ABS. Four-piston calipers.
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc. ABS. Two-piston calipers.
- Rear brakes diameter
- 245 mm
- ABS
- Yes
- Front tyre
- 120/70-ZR17
- Rear tyre
- 180/55-ZR17
Other
- Color options
- Dark stealth
- Warranty
- 24
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 |
|---|---|---|
| Capacity | 821 cc | 821 cc |
| Dry weight | 180 kg | 180 kg |
| Seat height | 785 mm | 785 mm |
| Fuel capacity | 17.5 L | 17.5 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Safety Recalls
⚠ 1 recall may applySERVICE 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.
These recalls cover some 2015 bikes of this model. Whether one applies to a specific bike, and whether the repair has already been done, depends on its VIN — check your VIN with NHTSA or ask a dealer.
Source: NHTSA. View all Ducati recalls →
Rider Reviews
Common questions
What is the engine size of the Ducati Monster 821 Dark?
The 2015 Ducati Monster 821 Dark has a Capacity of 821.0 ccm (50.10 cubic inches).
What engine power does the Ducati Monster 821 Dark have?
The 2015 Ducati Monster 821 Dark has a Power of 112.0 HP (81.8 kW) @ 9250 RPM.
How many gears does the Ducati Monster 821 Dark have?
The 2015 Ducati Monster 821 Dark has a Gearbox of 6-speed.
What is the torque of the Ducati Monster 821 Dark?
The 2015 Ducati Monster 821 Dark has a Torque of 89.4 Nm (9.1 kgf-m or 65.9 ft.lbs) @ 7750 RPM.
How much does the Ducati Monster 821 Dark weigh?
The 2015 Ducati Monster 821 Dark has a Dry weight of 179.5 kg (395.7 pounds).
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