The Ducati Monster 821 Stealth is a masterclass in performance and style, delivering an unmatched riding experience that’s both thrilling and accessible. Its Testastretta 11 L-Twin engine produces a potent 109 horsepower at 9,250 rpm, paired with a smooth delivery of torque across the rev range.
This potent combination of power and refinement creates a fluid riding sensation, perfectly in tune with the road. The Monster 821’s handling is agile and responsive, thanks to its trellis frame attached to cylinder heads and double-sided swingarm design.
The new Stealth model boasts a sleek matt black livery and red graphics, alongside a host of advanced features including quick shift system, adjustable fork, and nose fairing. With its Ducati Safety Pack fitted as standard, the Monster 821 Stealth is an unbeatable choice for riders seeking pure performance, precision handling, and unbridled riding joy – making it the ultimate machine to unleash your passion on twisty roads and open highways alike.
Key Specifications
Engine Type
Four stroke, Testastretta 11 L-Twin, 4 Desmodromically actuated valves per cylinder
Engine Capacity
50.1 cubic inches / 821 cc
Max Power
80 kw / 109 hp
Max Torque
86 Nm / 9.1 kgf-m / 63 lb-ft @ 7750 rpm
Fuel Tank Capacity
4.36 US gallons / 16.5 L
Weight (Wet/Kerb)
454 lbs / 206 kg
Seat Height
30.9 inches / 785 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
Ducati Monster 821 Stealth
Year
2019 – 2020
Engine
Engine Type
Four stroke, Testastretta 11 L-Twin, 4 Desmodromically actuated valves per cylinder
Displacement
50.1 cubic inches / 821 cc
Bore x Stroke
88 x 67.5 mm
Compression Ratio
12.8:1
Max Horsepower
80 kw / 109 hp
Max Torque
86 Nm / 9.1 kgf-m / 63 lb-ft @ 7750 rpm
Engine Management System
Electronic fuel injection system, 53mm throttle bodies with full Ride by Wire
Cooling System
Liquid cooled
Exhaust
Stainless steel muffler and aluminium and cap; lightweight 2-1 system with catalytic converter with 2 lambda probes
Performance
Top Speed
n/a
*n/a – information not provided by manufacturer
Transmission
Clutch
Slipper and self-servo wet multiplate clutch with mechanical control
*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
