We don’t force you to read like those other print-only publications. Here at MO, we let you choose. We offer up our opinions both here and on the Youtubes. In the case of the 2021 Aprilia Tuono V4, I was able to score the Factory model for some extra testing which allowed more time to use the bike around town and the opportunity to weigh and dyno the machine before shooting the video below.
2021 Aprilia Tuono V4 Review – First Ride
I’ve owned a Tuono since 2016, and it was a purchase that I’ve never regretted, even now as it sits with electrical issues that I’ve neglected to take care of (it may have been my doing, we’ll know when I finally get someone more competent than I to check it out). The 2021 model is better in nearly every way, although mine has more of a raw bark to its exhaust note. That is likely due to the ever tightening squeeze that Euro 5 demands of new machines – which the Tuono has succumbed to. None of the thrill is lost though. The 1077cc 65-degree V-Four still packs a punch.
Judging by that flat spot after 9000 rpm (and things we’ve read on the internet) we’d surmise an ECU flash could pump some more power to the rear wheel.
Aprilia says it hasn’t sacrificed any power to the new emissions standards. The dyno has it making 0.7 hp less and 2 lb-ft more than the last time we dyno’d the big V4 (they were run on different dynos though). The chassis remains one of the best, and its stability and ease of placing the machine exactly where you want it hasn’t waned.
What Aprilia has managed to do with the electronics package and other subtle refinements over the past decade has brought to the market an improved version of the hypernaked bike we have come to love here at MO. I’ll stop gushing though since you’re probably not here to read what I have to say anyway.
| Specifications | 2021 Aprilia Tuono V4 Factory | 2021 Aprilia Tuono V4 |
|---|---|---|
| Engine type | 65° V-Four, four-strokes, liquid cooling system, double overhead camshaft (DOHC), four valves per cylinder | |
| Bore and stroke | 81.0 x 52.3 mm | |
| Total engine capacity | 1077 cc | |
| Horsepower | 155.8 hp at 11,100 rpm (measured at the rear wheel) | |
| Torque | 84 lb-ft. at 9,000 rpm (measured at the rear wheel) | |
| Power Supply | Airbox with front dynamic air intakes. Four Weber-Marelli 48-mm throttle bodies with 4 injectors and latest generation Ride-by-Wire engine management that the rider can select on the fly | |
| Ignition | Magneti Marelli digital electronic ignition system integrated in engine control system, with one spark plug per cylinder and “stick-coil”-type coils | |
| Exhaust | 4 into 2 into 1 layout, two oxygen sensors, lateral single silencer with ECU-controlled bypass valve and ceramic matrix substrate catalytic converter (Euro 5). | |
| Alternator | Flywheel mounted 450 W alternator with rare earth magnets | |
| Lubrication | Wet sump lubrication system with oil radiator and two oil pumps (lubrication and cooling) | |
| Transmission | 6-speed cassette type gearbox. Gear lever with Aprilia Quick Shift electronic system (AQS) | |
| Clutch | Multiplate wet clutch with slipper system | |
| Drive | Chain; drive ratio: 42/15 | Chain; drive ratio: 40/15 |
| Traction management | APRC system (Aprilia Performance Ride Control) that includes engine maps (AEM), engine brake control (AEB), traction control (ATC), wheelie control (AWC), launch control (ALC), cruise control (ACC), speed limiter (APT). 6 riding modes (3 Road, 3 Track) | |
| Chassis | Aluminium dual beam chassis with pressed and cast sheet elements. Adjustments foreseen: position and angle of the headstock, engine height, swingarm pivot height. Upside-down double braced aluminium swingarm. | |
| Steering Damper | Smart EC 2.0 electronically managed Öhlins steering damper | Sachs steering damper |
| Front Suspension | Smart EC 2.0 electronically managed Öhlins NIX fork with TIN surface treatment. Completely adjustable spring preload and hydraulic compression and rebound damping. | Sachs fully adjustable single shock absorber. |
| Front Wheel Travel | 4.7 inches | 4.6 inches |
| Rear Suspension | Smart EC 2.0 electronically managed Öhlins monoshock absorber with piggy-back. APS progressive linkages. | Sachs monoshock absorber with piggy-back, fully adjustable in: spring preload, hydraulic compression and rebound damping. |
| Rear Wheel Travel | 5.1 inches | |
| Front Brakes | Dual 330-mm diameter floating stainless steel disc with lightweight stainless steel rotor with 6 pins. Brembo M50 monobloc radial callipers with 4 Ø30mm opposing pistons. Sintered pads. Radial pump and metal braided brake lines. | |
| Rear Brakes | 220 mm diameter disc; Brembo floating calliper with two 32-mm Ø isolated pistons. Sintered pads. Master cylinder with built in reservoir and metal braided hose. | |
| ABS | Bosch 9.1 MP ABS with cornering function, adjustable on 3 maps, featuring RLM strategy and can be disengaged. | |
| Front Wheel | 3.5”x17” cast aluminum wheels with 3 split spoke design. | |
| Rear Wheel | 6.00”x17” cast aluminum wheels with 3 split spoke design. | |
| Front Tire | 120/70 ZR 17, radial tubeless | |
| Rear Tire | 200/55 ZR 17 (alternative: 190/50 ZR 17;), radial tubeless | 190/55 ZR 17, radial tubeless |
| Wheelbase | 57.1 inches | |
| Length | 81.5 inches | |
| Width | 31.9 inches | |
| Seat Height | 32.5 inches | |
| Rake/Trail | 24.7°/3.9 inches | |
| Dry weight | 407.9 pounds (claimed) | |
| Curb weight | 471 pounds (measured) | |
| CO2 emissions | 170 g/km | |
| Fuel tank capacity | 4.9 gallons (1.1 gallons reserve) | |
| Fuel Economy | 32.7 mpg (claimed) | |
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