2018 Ducati

Monster 821

With its supremely sporty performance and agility, the new Monster 821 has been designed for maximum riding pleasure. The performance of the 109 HP Testastretta 11° engine is enhanced by the Ducati Safety Pack (ABS and Ducati Traction Control) and the Riding Modes, which guarantee maximum safety always and everywhere. In addition, the Ducati Quick-shift up&down system is available as an accessory. The new TFT colour display provides the rider with all of the necessary information at any time.


The Monster 821 inherits the purest Monster essence from the first Monster 900, perfectly combining performance and ease of riding.
The richness of the standard outfitting, low ownership costs and the extensive catalogue of accessories make the Monster 821 the ideal everyday companion, while retaining the unique character of the true Ducati sport naked bike typical of every Monster.

Available Colors


PRICE: $11,995


PRICE: $12,095

dark stealth

PRICE: $12,895

Technical specifications

Testastretta 11°, L-Twin, 4 Desmodromically actuated valves per cylinder, Water cooled
821 cc (50.1 cu in)
Bore x Stroke
88 x 67.5 mm (3.46 x 2.66 in)
Compression ratio
80 kW (109 hp) @ 9,250 rpm *
86 Nm (8.8 kgm / 63 lb-ft ) @ 7,750 rpm *
* The power/torque values indicated are measured using an engine dynamometer according to homologation regulation and they correspond to the homologated data, as quoted in the Bike Registration Document.
Fuel injection
Electronic fuel injection system, Ø 53 mm throttle bodies, Full Ride-by-Wire
2-1 system, Two lambda probes, Stainless steel muffler with aluminium end cap
6 speed
Primary drive
Straight cut gears, ratio 1.85:1
1=37/15 2=30/17 3=28/20 4=26/22 5=24/23 6=23/24
Final drive
Chain drive, Front sprocket Z15, Rear sprocket Z46
Slipper and self-servo wet multiplate clutch with mechanical control
Tubular steel trellis frame linked to cylinder heads
Front suspension
Ø 43 mm usd fork
Front wheel
10-spoke light alloy, 3.5″ x 17″
Front Tyre
120/70 ZR 17 Pirelli Diablo Rosso III
Rear suspension
Progressive linkage with adjustable monoshock, Aluminium double-sided swingarm
Rear wheel
10-spoke light alloy, 5.5″ x 17″
Rear tyre
180/55 ZR17 Pirelli Diablo Rosso III
Front wheel travel
130 mm (5.12in)
Rear wheel travel
140 mm (5.51 in)
Front brake
2 x Ø 320 mm semi-floating discs, radially mounted monobloc Brembo M4-32 callipers, 4-piston, axial pump with Bosch ABS as standard equipment
Rear brake
Ø 245 mm disc, 2-piston calliper with Bosch ABS as standard equipment
TFT colour display
Dry weight
180,5 kg (398 lb)
Weight data refers to the dry weight of the motorcycle without battery, lubricants and coolants for liquid-cooled models.
Wet weight (KERB)
206 kg (454 lb)
Kerb weights indicate total bike weight with all operating consumable liquids and a fuel tank filled to 90% of capacity (as per EC standard 93/93).
Seat height
Adjustable 785 mm – 810 mm (30.91 in – 31.89 in)
1,480 mm (58.27 in)
93.2 mm (3.67 in)
Fuel tank capacity
16.5 l (4.36 US gal)
Number of seats
Standard Equipment
Riding Modes, Power Modes, Ducati Safety Pack (Bosch ABS + Ducati Traction Control DTC), Ride-by-Wire, TFT colour display, Passenger seat cover. Up&down Quickshift (DQS), Anti-theft system, Ducati Data Analyzer (DDA) ready.
24 months unlimited mileage
Maintenance service intervals
15,000 km (9,000 mi) / 12 months
Valve clearance check
30.000km (18,000m)


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*Disclaimer Pricing: We list the 'base color' price for all models which excludes applicable promotion benefits, tax, title, registration fees. Media: The images and video shown on our site may show optional equipment and is not included in our pricing unless otherwise noted. Changes: Products are subject to change by the manufacturer without notice to anyone. Availability: Bikes, apparel, parts, and accessories shown on this site may be in limited supply, or otherwise unavailable when you decide to purchase.