Review
Electric Bikes

HappyRun G100 Pro vs Ariel Rider X-Class 60V: Which High-Power E-Bike Should You Buy?

You’re basically deciding between two kinds of “high-powered with pedals” energy: the HappyRun G100 Pro’s brutally punchy, dirt-bike-inspired shove… or the Ariel Rider X-Class 60V’s more polished, street-ready moped-style e-bike feel with a real range test to back it up.

We’ve put time on both in our RunPlayBack reviews. If you’re trying to spend your money once (and not regret it after the first week), here’s how they compare in the stuff that actually matters.

First Impressions

The HappyRun G100 Pro hits you with attitude immediately. It feels like an electric bike that wants to be treated like a lightweight moto: full suspension, fat tires, loud styling, and an NFC card unlock that makes it feel more “vehicle” than “bike.” The cockpit is busy in a good way—lights, turn signals, and a horn—so it feels built for real streets.

The Ariel Rider X-Class 60V Performance Edition feels more mature and purpose-built. The lighting and signals don’t feel like afterthoughts, the center color LCD is easy to read in daylight, and overall it comes off like a moped-style e-bike that was designed to be ridden in traffic.

Big fit note from our ride time on the X-Class: the saddle sits tall. We couldn’t flat-foot it, so if you’re looking for that “both feet planted” stoplight vibe, that’s a legit consideration.

Power & Acceleration

If your priority is that gut-punch launch, the HappyRun G100 Pro is the one that made us laugh inside our helmet.

On our rides, the G100 Pro snaps hard off the line—quick to around 30 mph in a way that feels more like a lightweight moto than a typical fast e-bike. Past that, it still pulls, but the sensation changes from “violent shove” to a more normal acceleration feel once you’re already rolling. We saw about 46 mph on top-speed runs.

The X-Class 60V gets fast quickly too, but the tune feels different. The throttle had a slight delay in our testing, then it ramps smoothly instead of snapping. For commuting and traction control, we actually liked that smoother ramp. And once we unlocked it via the app, the bike’s personality changes completely.

On our range test bike, we recorded a 49.2 mph peak speed.

Category call:

Quickest, most aggressive 0–30 feel: HappyRun G100 Pro

Smoother, easier-to-modulate power delivery: Ariel Rider X-Class 60V

Comfort

The G100 Pro’s full suspension plus fat tires felt like a cheat code on rough roads. It did a surprisingly good job taking the edge off speed bumps, rough pavement, and train tracks.

But our comfort limiter was the seat: it felt stiff and also slippery. We kept thinking it would feel dramatically better with a grippier cover or a comfort upgrade.

The X-Class surprised us on comfort in a different way. Between the inverted front fork, the adjustable rear shock, and the big saddle seat, it stayed forgiving even when we dipped onto rougher sections. It feels set up for longer, chill miles—then you can still twist throttle when you want to.

Category call: Ariel Rider X-Class 60V (seat + suspension combo felt more “long-ride friendly” in our time on it)

Handling

The HappyRun G100 Pro felt confidence-inspiring on rough pavement and sketchy surfaces at normal street speeds, but at higher speeds we noticed the front end could feel a little “off.” It reminded us of something like an unbalanced front tire or a setup detail that needs attention (tire pressure, wheel balance, etc.). Not a dealbreaker, but it’s not the kind of thing you ignore at 30+.

The X-Class has a very specific handling personality because of its staggered wide tires (wider rear than front). Tight, quick turns can feel a little squirrely until you adapt. The trick, in our experience, is to ride it more like a small moto: lean and arc through corners instead of quick upright handlebar flicks. Once we adjusted, it felt stable at speed—but there is a learning curve.

Category call: Tie (both have a “know this before you buy” handling quirk—G100 Pro at higher speed feel, X-Class in tight turning technique)

Features

Video still from HappyRun G100 Pro Review: Not Quite 50mph, Still a Total Animal at 2:07

HappyRun G100 Pro highlights from our review time:

NFC card unlock (nice peace-of-mind feature)

Integrated lighting, turn signals (with an audible reminder), horn, and brake light

Dual removable batteries, but you manually switch between them (not wired in parallel)

Pedal assist exists, but this is not a “buy it to pedal it” e-bike (single-speed and you spin out quickly)

Video still from Ariel Rider X-Class 60V Range Test and Real-World Ride Review (Dual Battery Performance Edition) at 2:55

Ariel Rider X-Class 60V highlights from our testing:

Lighting that feels genuinely street-ready (bright headlight with low/high beam, visible integrated signals, strong brake light)

App-based speed limit unlock (worked for us, but we did run into some finicky connection/timeout behavior depending on firmware)

Dual-battery setup (one in-frame, one on top)

Brakes that feel like they match the weight and speed potential (four-piston hydraulics with big rotors)

Category call:

Best security/anti-tamper touch: HappyRun G100 Pro (NFC unlock)

Best overall street-ready “system” feel: Ariel Rider X-Class 60V

Winner by Category

First impressions (fit/finish as a street-ready package): Ariel Rider X-Class 60V

Power off the line / punchiest acceleration feel: HappyRun G100 Pro

Comfort for longer rides: Ariel Rider X-Class 60V

Handling (overall): Tie (different quirks, different learning curves)

Useful features for daily street riding: Ariel Rider X-Class 60V

Video still from HappyRun G100 Pro Review: Not Quite 50mph, Still a Total Animal at 4:38
Video still from HappyRun G100 Pro Review: Not Quite 50mph, Still a Total Animal at 7:19

Who Should Buy HappyRun G100 Pro

Video still from HappyRun G100 Pro Review: Not Quite 50mph, Still a Total Animal at 10:23

Buy the G100 Pro if:

You want the most aggressive, instantly-fun torque hit from a stop

Your riding is a mix of rough pavement, speed bumps, shortcuts, and light off-road like grass/campsite cruising

You like the idea of NFC unlock and a cockpit that feels more scooter/vehicle-like

We’d pass (or at least think hard) if you’re brand-new to high-power e-bikes. The low-speed throttle tune is spicy enough that you need respect and restraint—“whiskey throttle” is a real possibility.

Video still from Ariel Rider X-Class 60V Range Test and Real-World Ride Review (Dual Battery Performance Edition) at 6:00
Video still from Ariel Rider X-Class 60V Range Test and Real-World Ride Review (Dual Battery Performance Edition) at 9:51

Who Should Buy Ariel Rider X-Class 60V

Video still from Ariel Rider X-Class 60V Range Test and Real-World Ride Review (Dual Battery Performance Edition) at 13:54

Buy the X-Class 60V Performance Edition if:

You want a moped-style e-bike that feels built for traffic and commuting

You care about real-world range testing and want a bike that holds up when ridden hard

You prefer smooth, predictable throttle ramp over a snappy launch tune

Think twice if you’re shorter and want to flat-foot at stops, or if you hate app/firmware quirks (we did have to deal with some finicky behavior on our test unit).

Final Verdict

If you’re buying mostly for adrenaline and that “brutally quick to 30” hit, we’d steer you toward the HappyRun G100 Pro—just go in knowing it’s aggressive, heavy, and the seat is not the comfort highlight.

If you’re buying for a street-ready daily ride that still rips when you unlock it—and you want the more polished, longer-ride-friendly setup—our pick is the Ariel Rider X-Class 60V.

Either way, both of these blur the line between e-bike and small electric vehicle. Before you commute on either, it’s worth checking how your local rules classify high-speed, throttle-heavy e-bikes.

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