Comparison of Aprilia Shiver 900 2021 and Ducati Monster 821 Stealth [S]ave
| Attribute |  Aprilia Shiver 900 2021 × |  Ducati Monster 821 Stealth × |
|---|---|---|
| General | ||
| Production from (year) | 2021 | 2020 |
| Make | Aprilia | Ducati |
| Model | Aprilia Shiver 900 | Ducati Monster 821 Stealth |
| Category | Naked bike | Naked bike |
| Engine and transmission | ||
| Engine type | V2, four-stroke | V2, four-stroke |
| Valves per cylinder | 4 | 4 |
| Fuel system | Injection. Ride by Wire integrated engine control system. | Injection. 53mm throttle bodies with full Ride by Wire |
| Engine details | Longitudinal 90° V-twin | Testastretta 11° L-Twin |
| Displacement (cm³) | 896 | 821 |
| Power (kw) | 69.3 | 79.6 |
| Fuel consumption (l/100km) | 5.31 | 5.4 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 90 | 86 |
| Bore (mm) | 92 | 88 |
| Stroke (mm) | 67.4 | 67.5 |
| Gearbox | 6-speed | 6-speed |
| Greenhouse gases | 123.2 CO2 g/km. (CO2 - Carbon dioxide emission) | 125.3 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Desmodromic valve control |
| Emission details | Euro 4 | Euro 4 |
| Ignition | Digital electronic, integrated with the injection | - |
| Clutch | Multiplate wet clutch, hydraulically operated | APTC slipper and self-servo wet multiplate clutch with control cable |
| Lubrication system | Wet sump | - |
| Compression | 11.0:1 | 12.8:1 |
| Exhaust system | 2 into 1 exhaust system in 100% stainless steel with three-way catalytic converter and lambda probe | Stainless steel muffler and aluminium and cap; lightweight 2-1 system with catalytic converter with 2 lambda probes |
| Chassis | ||
| Front suspension | Kabaya Upside-down fork, 41 mm. Adjustable hydraulic rebound damping and spring preload. | 43mm upside-down forks |
| Rear suspension | Double sided aluminum alloy swingarm. Sachs monoshock absorber with adjustable preload and rebound damping. | Progressive linkage with adjustable monoshock. Aluminium double-sided swingarm |
| Front brakes | Double disc. ABS. Wave disc. Four-piston radial calipers. | Double disc. Semi-floating discs, radially mounted Monobloc Brembo M4-32 callipers, 4-pistons, axiial pump with ABS as standard |
| Rear brakes | Single disc. ABS. Wave disc. Single piston caliper. | Single disc. 2-piston floating calliper with ABS as standard equipment |
| Diameter (mm) | 240 | 245 |
| Frame type | Modular tubular steel frame fastened to aluminium side plates by high strength bolts. Removable rear subframe. | Tubular steel Trellis frame attached to the cylinders head |
| Front tyre | 120/70-ZR17 | 120/70-ZR17 |
| Rear tyre | 180/55-ZR17 | 180/55-ZR17 |
| Seat | - | Dual seat |
| Wheels | 3-spoke aluminium alloy whee | 10-spoke in light alloy. Pirelli Diablo Rosso II tyres. |
| Front wheel travel (mm) | 130 | 130 |
| Rear wheel travel (mm) | 130 | 140 |
| Trail (mm) | 109 | 93 |
| Rake (fork angle) (degree) | 25.9 | 24.3 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
|
|
| Instruments | - | LCD display |
| Dimensions | ||
| Wheelbase (mm) | 1,465 | 1,480 |
| Kerb weight (kg) | 218 | 205 |
| Dry weight (kg) | 199 | 180 |
| Power/weight ratio | 0.3482 | 0.441 |
| Overall height (mm) | 1,110 | 1,055 |
| Overall length (mm) | 2,130 | 2,170 |
| Overall width (mm) | 810 | 800 |
| Seat height (mm) | 810 | 785 |
| Alternate seat height | - | 810 |
| Performance | ||
| Fuel capacity (l) | 15 | 16.5 |
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