Looks like it was beamed down from the mothership
The Jansno X90 is the kind of e-bike that makes you do a double-take. The floating rear seat, triangular frame cutout, and matte olive paint look like something beamed in from a sci-fi show. But underneath the “alien” styling is a compact, full-suspension moped-style e-bike that’s genuinely fun—and surprisingly capable for its size.
With 16×4″ fat tires, a 750W rear hub motor, and a 48V 14Ah battery, the X90 isn’t built to break speed records; it’s built to put a smile on your face. Think of it like a pocket-sized scrambler: tossable, approachable, and perfect for smaller riders.
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JAMESKLYMUS
First Impressions & Fit
The X90 looks tiny next to typical 20×4″ mopeds—and that’s the point. The smaller wheels lower the whole bike, making it easy to flat-foot and easy to handle at low speeds. If you’ve ever felt cramped on “big” frames or you’re buying for a teen/shorter rider, this size just works.
You get a simple LCD (with voltage readout), NFC tap-to-start, front & rear turn signals, a loud horn, and an integrated Jansno tail light. There’s even a quick-release front axle for transport. The seat is short (no passenger foot pegs), and at ~90+ lb the bike is hefty for its footprint—plan to charge on-bike since the battery isn’t a quick-swap design
Specs at a Glance
Jansno X90Motor
750W rear hub (≈60 Nm claimed)
Battery
48V 14Ah (≈672 Wh), "non-removable"
Top Speed
28mph unlocked
Suspension
Front fork (non-adjust) + rear coil (soft)
Brakes
Cable front and rear
Tires
16x4inch Chao Yang Knobby
Pedal Assist
5 levels
Price
$899
Real-world results vary with rider weight, terrain, and weather.
Power, Speed & Unlocking
Stock, the X90 behaves like a proper Class-2: 20 mph on throttle and PAS. Unlocked, it’ll hold ~28 mph (about 29 mph downhill). Acceleration is peppy off the line and it will keep 20+ mph up moderate grades—impressive for a 16″ bike.
There are a couple of known unlock methods floating around (including a brake-and-throttle boot sequence). Just a reminder: unlocking can affect legal/class compliance where you ride—know your local rules.
Ride & Handling
This little thing is a riot. The 16×4″ Chaoyang fat tires make the bike feel planted yet super flickable—like carving on a skateboard with training wheels. The front fork is non-adjustable and the rear coil shock is surprisingly soft, so city cracks and light trail chatter get soaked up decently.
Push hard and you’ll find the limits: the front can bottom out on big hits, cable brakes need a good squeeze, and high-speed direction changes are twitchier than on larger wheels. But ride it in its lane—suburban streets, bike paths, light off-road—and it’s grin-inducing.
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Pros
- Compact 16" format fits smaller riders and feels super tossable
- Unlockable to ~28 mph; peppy on hills for the size
- Real turn signals, horn, and NFC at this price
- Soft rear shock adds comfort; off-roadable on light trails
- Unique, futuristic styling that stands out
Cons
- Cable brakes only; front fork can bottom on big hits
- Battery is modest; gauge sags under load
- Some welds are rough; front fender can rattle
- Heavy for its footprint; battery not quick-swap
- No passenger setup
Range & Battery Behavior
The 48V 14Ah pack is tidy and sleek, but it’s not a marathoner. Expect around 16-18 miles if you ride like a hooligan (full throttle, wind, hills, some off-road). With mixed PAS and reasonable speeds, 20–25+ miles is realistic. The gauge sags under load—watch voltage for a truer picture.
Verdict: Small Wheels, Big Personality
The Jansno X90 is proof that fun doesn’t have to be huge. With 16×4″ tires, approachable geometry, and just-enough power, it’s tailor-made for smaller riders or anyone who wants a compact moped-style bike that doesn’t feel like a toy.
It’s not perfect—brakes are basic, the fork can clunk on hard hits, and the battery’s on the small side—but it’s hard not to love the overall package. For short commutes, campus cruising, or neighborhood adventures, the X90 punches way above its weight. It’s like a terrier with a turbo: small, scrappy, and always ready to play.
JAMESKLYMUS
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