Ducati Monster 821
The Ducati Monster 821 was introduced in 2014 as a mid-range naked roadster, slotting between the Monster 696 and the flagship Monster 1200 to broaden the Monster lineup's appeal. It featured the Testastretta 11° twin-cylinder engine and was notable for bringing a more premium, performance-oriented experience to riders who wanted more than an entry-level Monster without the full commitment of the 1200. The 821 received updates in 2018 with revised styling and improved electronics before being discontinued around 2021, replaced by the Monster 937.
109 hp
Power
89 Nm
Torque
193 kg
Weight
230 km/h (estimated)
Top Speed
6.5 L/100km (approx. 15.4 km/L, typical real-world average)
Fuel
Naked
Body
What Buyers Should Know
Desmo Service Costs
The Ducati Monster 821 requires a Desmodromic valve service every 15,000 miles, which can cost $600–$1,200 at a dealership. Always verify service history before buying, as skipped intervals can lead to serious engine damage.
Watch for Coolant Leaks
A known issue on the 821 is coolant weeping from the water pump seal, especially on pre-2018 models. Inspect the lower left engine area carefully and ask the seller about any overheating history.
Strong Resale Value
The Monster 821 holds its value better than many middleweight competitors, often retaining 60–70% of its original price after three years. Its Ducati badge, sporty styling, and liquid-cooled 821cc twin make it consistently desirable on the used market.
Full Specifications
Rivals & Alternatives
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