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2017–2026 · Naked Bike · Buyer's Guide
Big-Bike Soul, 125cc Body
The Tuono 125 takes the aggressive look of Aprilia's bigger Tuono and shrinks it onto a genuine sporting chassis. Underneath sits a liquid-cooled single that makes its 15 hp high in the rev range, at 10,750 rpm, so it rewards a rider who keeps it spinning. The frame and componentry come from the same well as its RS125 sibling, and it shows in how the bike carries itself. USD fork up front, ABS as standard, and a build that feels engineered rather than assembled down to a price. In its class it reads as the real motorcycle, not the toy.
On the road it feels light and honest. At 317 lb with a 31.9 in seat, it drops into corners with almost no effort and hands you clear feedback about what the front tire is doing. This is a bike for a rider who wants full-size feel without full-size mass: city streets during the week, twisty back roads on the weekend. It ages well too, since the parts you actually touch hold up. The honest caveat is temperament. Power delivery is smooth and predictable rather than savage, so if you came chasing raw adrenaline, the intensity here is measured, not wild.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 15 hp (11 kW) @ 10,750 rpm |
|---|---|
| Torque | 8 lb-ft (11 Nm) |
| Displacement | 124 cc |
| Engine | Single-cylinder |
| Cooling | Liquid-cooled |
| Gearbox | 6-speed |
| Final drive | Chain |
| Fork | Upside-down (USD) |
| Front tire | 100/80-17 |
| Rear tire | 130/70-17 |
| Seat height | 31.9 in (810 mm) |
| Wet weight | 317 lb (144 kg) |
| Fuel capacity | 3.8 gal (14.4 L) |
| Top speed | 69 mph (112 km/h) |
| Fuel economy | 87 mpg (US) |
Equipment check
Drivetrain
Safety
Swing a leg over and the ergonomics register instantly as full-size: wide bars, a natural reach, and every control landing right where your hand expects it. Thumb through the gearbox and each shift goes home clean and precise, with no vagueness. What surprises is the mechanical note, which stays composed and never slides into the cheap, buzzy chatter you brace for on a small single. Pick up the pace on a good road and the bike sits planted and calm underneath you. The Mitas rubber grips hard enough that leaning it well over never felt like a gamble, and the brakes pull with a steady, consistent bite. Everywhere your hands and eyes land, the assembly feels tight. Nothing rattles, nothing telegraphs a corner cut on cost.
My own 0–100 score for this bike against the class, area by area — the marker on each bar is the class average.
The first bend told me most of what I needed to know. This chassis turns with real intent, dropping onto a line cleanly and holding it without any of the jitter I expect from small machines. The front fork surprised me most: lean on it hard and it keeps feeding you support instead of collapsing early. The rubber earns its own credit too, staying planted through committed lean where budget tires usually cry uncle and rob your nerve.
Everywhere I laid a hand, the build quality reassured me this bike will hold up over the long haul. Each component felt purposefully fitted and genuinely solid, put together by people who cared about the work rather than hitting a number on a spreadsheet. I found no stray rattles, no quiet corners cut where a budget normally shows through. That level of attention at every point of contact usually flags a machine that keeps its integrity as the years add up.
There's ABS watching the front wheel, and the brakes themselves give me a firm, dependable pull that doesn't fade as the miles pile up. What I rate highest is how they team up with the chassis rather than wrestling it. Grab a big handful heading into a corner and the bike tucks down onto its intended line instead of standing up and protesting, which is rare this far down the price ladder.
Sit on it and the proportions read as a full-size machine straight away. The handlebar is broad, the reach relaxed, and my hands fell onto the controls with no searching or stretch. I was settled within seconds and simply rode. The gearbox backs that impression up every time I toe through it, each change slotting home tidy and sure. Nothing about the cockpit gives away the modest engine slung beneath it.
You would never guess how little displacement is doing the work here. Every roll of the throttle came back clean and controlled, without the coarse rattle you brace for on a small single. The honest catch is temperament. This motor is a gentler animal than the old smokers it stepped in for, so if you cut your teeth on that sharp two-stroke hit, you'll notice the edge has come off. What you get back is a motor I can trust and far fewer headaches.
I've spent years gathering what Tuono 125 owners tell me: notes they send my way, email chains that stretch on, and unguarded talk once a bike has piled on real miles. Set enough of it side by side and one shape keeps appearing. The good marks clearly outrun the complaints, and what few complaints surface stay tightly focused.
Riders bring up the motor first, praising how it wakes up high in the rev range and answers a committed hand. The chassis draws nearly as much loyalty, with light, sure steering that settles well once leaned over. Larger riders call out the upright, open perch for stretching out a longer day. The front brake picks up steady approval for firm, manageable stopping power with ABS in support, and many say the sharp bodywork and aluminum frame carry the presence of something costlier.
The factory tires draw the loudest criticism, blamed for scarce grip and vague feel, and most riders swap them straight away, especially before wet weather. Next comes the suspension, fixed with no adjustment on offer and a soft streak once riders lean on it. A smaller group flags the stock exhaust wearing out ahead of its time.
Exhaust holing/corrosion
The stock exhaust system is prone to rusting through, often requiring a complete replacement. This is a known weak point, exacerbated by wet conditions and insufficient care.
Gearbox damage from quickshifter
When the optional quickshifter is fitted, the 125cc gearbox can develop serious issues, including jumping out of gear under acceleration. The additional stress is believed to overburden the lightweight transmission.
Where this Aprilia Tuono 125 pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Top speed
Seat height
Forget spec-sheet bragging. Here's who the Tuono 125 is actually built for.
This one fits your week cleanly: light and easy through city traffic, then genuinely sharp when the group heads up the ridge roads. Modern and photogenic enough to earn its spot at the meetup.
Made for Bay Area Ridge Roads · San Francisco / Bay Area · Skyline Boulevard / Alice's Restaurant
The chassis and feedback are built for your canyon days, and it flatters technique like few small bikes do. Be honest with yourself, though: with 15 hp and a 69 mph ceiling, it rewards corner skill, not straight-line pace.
Made for Angeles Crest Highway · Coronado Trail / US 191 · Highway 1 / Big Sur
For skill-over-speed work on the Dragon and Cherohala, this sits right in your wheelhouse. Light, communicative, and endlessly willing to be placed exactly where you want it through tight, technical corners.
Made for Back of the Dragon · Blue Ridge Parkway · Cherohala Skyway