Ducati Monster 821 2017

The Monster 821 Engine

The Monster 821 is powered by the Testastretta 11° 821 cc engine, with air injection system. A secondary air system similar to the one used on the 1199 Panigale has been introduced in order to optimise operation and reduce combustion cycle variability, without affecting emissions. A controlled flow of clean air is injected into the exhaust pipe, enabling total oxidation of the hot exhaust gases, efficiently cutting hydrocarbon and carbon monoxide levels.

The Testastretta 11° engine fitted to the Monster 821 is an exclusive feature of these bikes and its structure has been engineered to be an integral element of the frame. In addition, the air filter and exhaust system have been designed to provide improved torque at low-medium engine speeds.

The Testastretta 11° 821 cc engine generates power equal to 82.4 kW (112CV) @ 9,250 rpm*  and 89.4 Nm (9.1kgm) of torque at 7,750 rpm.

Slipper Clutch

The transmission features an oil bath clutch with "slipper" function and a lever that is very light to the touch. It is equipped with a gradual self-servo system that compresses the discs when the engine speed is reduced, allowing the load on the pressure plate springs to be reduced. This reduces the stress on the clutch lever, ensuring optimum conditions in city traffic when frequent gear changes are required, or on long trips.

When the transmission force is reversed (overload), the same mechanism makes it possible to reduce the pressure on the clutch plates, enabling them to work in "slipper" mode, which reduces the destabilising effect on the rear end during aggressive downshifting and gives a feeling of greater fluidity when decelerating or downshifting in normal driving conditions. 

Service Intervals

The meticulous design and top-quality materials used for the Monster have allowed amazing results to be achieved.

Adjusting the valve clearance is scheduled for every 30,000 km and changing the oil every 15,000 km, increasing service intervals and cutting running costs. These results were made possible by improving combustion efficiency and cutting the operating temperatures of the Testastretta 11° engine. 

Instruments

The Monster 821's compact instrument panel has lights on the upper part of the dashboard for warnings relating to neutral, indicators, full beams, engine rpm limit, oil pressure and fuel reserve, while the lower part is comprised of an LCD display with a DOT-Matrix area to display all the other data.

The display gives information about speed, rpm. totaliser, trip1 and trip2, engine cooling liquid temperature, ambient temperature and clock. In addition, it displays present fuel consumption, average fuel consumption, average speed and duration of trip.

The DOT-Matrix area permanently displays the Riding Mode selected and the corresponding ABS and DTC levels set, and the 3 Riding Modes available can be selected very easily both when stationary and when in motion by using the indicator return button.

Adjustable Seat

The new Monster 821 is fitted with an adjustable seat (± 25 mm) that can adapt to the needs of customers all over the world.

The standard seat height can easily be adjusted to the lowest (785 mm) or highest (810 mm) positions. In addition, two optional seats allow riders to lower it another 20 mm (765/790 mm) or even 40 mm (745/770 mm).