Ducati Monster 821 Stealth vs Norton Commando 850 Interstate MK 3 (2020)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Ducati Monster 821 Stealthstacks up against the Norton Commando 850 Interstate MK 3. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecDucati Monster 821 StealthNorton Commando 850 Interstate MK 3
Model year20201977
Price
Engine821 cc828 cc
Horsepower109 hp51 hp
Torque86 Nm
Weight181 kg
Seat height31 mm
Fuel capacity4.4 L6.3 L
Fuel typepetrolpetrol
Transmission6-speed4-speed
Front brakesDouble disc. Semi-floating discs, radially mounted Monobloc Brembo M4-32 callipers, 4-pistons, axiial pump with ABS as standardSingle disc
Rear brakesSingle disc. 2-piston floating calliper with ABS as standard equipmentSingle disc
Tires120/70-ZR17 / 180/55-ZR17 4.10-19 / 4.10-19

Ducati Monster 821 Stealth vs Norton Commando 850 Interstate MK 3 — which should you buy?

Picking between the Ducati Monster 821 Stealth and the Norton Commando 850 Interstate MK 3 usually comes down to the numbers you care about most. On paper, the Ducati Monster 821 Stealth brings 109 hp in a 181 kg package, while the Norton Commando 850 Interstate MK 3 counters with 51 hp.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: