Ducati Monster 821 Stealth 2020 vs. Aprilia Shiver 900 2021

Technical Specifications Ducati Monster 821 Stealth 2020 compared to Aprilia Shiver 900 2021

Ducati Monster 821 Stealth 2020

Aprilia Shiver 900 2021

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Differences

Ducati Monster 821 Stealth 2020

Aprilia Shiver 900 2021

Engine and Drive Train

Engine type	Engine type	V	Engine type	V
Bore	Bore	88 mm	Bore	92 mm
Stroke	Stroke	67.5 mm	Stroke	67.4 mm
Engine power	Engine power	109 HP	Engine power	95.2 HP
Rpm at Max. Power	Rpm at Max. Power	9,250 rpm	Rpm at Max. Power	8,750 rpm
Torque	Torque	86 Nm	Torque	90 Nm
Rpm at Torque	Rpm at Torque	7,750 rpm	Rpm at Torque	6,500 rpm
Compression Ratio	Compression Ratio	12.8	Compression Ratio	11
Fuel system	Fuel system	Injection	Fuel system	Injection
Degrees	Degrees	90	Degrees	90
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath, Antihopping	Clutch Type	Multiplate in oil-bath
Transmission	Transmission	Chain	Transmission	Chain
Transmission Type	Transmission Type	Gearshift	Transmission Type	Gearshift
Number of gears	Number of gears	6	Number of gears	6
Cylinders	Cylinders	2	Cylinders	2
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Valves per cylinder	Valves per cylinder	4	Valves per cylinder	4
Valves	Valves	Desmodromic	Valves	DOHC
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	821 ccm	Displacement	896.1 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Brand	Brand	Sachs	Brand	Kayaba
Diameter	Diameter	43 mm	Diameter	41 mm
Travel	Travel	130 mm	Travel	120 mm

Suspension Rear

Suspension	Suspension	Swing arm	Suspension	Swing arm
Shock absorber	Shock absorber	Monoshock	Shock absorber	Monoshock
Brand	Brand	Sachs	Brand	Sachs
Travel	Travel	140 mm	Travel	130 mm
Material	Material	Aluminium	Material	Aluminium

Chassis

Frame	Frame	Steel	Frame	Steel
Frame type	Frame type	Tubular	Frame type	Tubular

Brakes Front

Type	Type	Double disk	Type	Double disk
Diameter	Diameter	320 mm	Diameter	320 mm
Piston	Piston	Four pistons	Piston	Four pistons
Actuation	Actuation	Hydraulic	Actuation	Hydraulic
Technology	Technology	radial, Monoblock	Technology	radial

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	245 mm	Diameter	240 mm
Piston	Piston	Double piston	Piston	Single piston

Assistance Systems

Advanced Rider Assistance Systems	Advanced Rider Assistance Systems	ABS, Riding modes, Ride by Wire, Quickshifter, Traction control	Advanced Rider Assistance Systems	ABS, Riding modes, Ride by Wire, Traction control

Dimensions and Weights

Front tyre width	Front tyre width	120 mm	Front tyre width	120 mm
Front tyre height	Front tyre height	70 %	Front tyre height	70 %
Front tyre diameter	Front tyre diameter	17 inch	Front tyre diameter	17 inch
Rear tyre width	Rear tyre width	180 mm	Rear tyre width	180 mm
Rear tyre height	Rear tyre height	55 %	Rear tyre height	55 %
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	17 inch
Length	Length	2,154 mm	Length	2,120 mm
Wheelbase	Wheelbase	1,480 mm	Wheelbase	1,440 mm
Seat Height	Seat Height	785 mm	Seat Height	800 mm
Fuel Tank Capacity	Fuel Tank Capacity	16.5 l	Fuel Tank Capacity	15 l
License compliancy	License compliancy	A	License compliancy	A