Michael Thompson
Picture this: it’s a crisp Saturday morning, and I’m weaving through my neighborhood streets, the hum of a powerful motor beneath me, the breeze cutting through the early spring chill. No gas station stops, no pedaling strain—just pure, effortless motion. That’s the magic of the Euybike S4 Long Range Moped-Style Electric Bike. This isn’t just another e-bike; it’s a head-turning hybrid of moped nostalgia and cutting-edge electric performance. After weeks of riding it through urban jungles and rugged trails, I’ve got a lot to say about what makes this bike tick.
The Euybike S4 is a moped-style electric bike that fuses retro mini-bike vibes with modern tech. It’s built for speed, comfort, and versatility, whether you’re dodging rush-hour traffic or kicking up dust on a backcountry path. With a beefy 1000W motor, a hefty 25Ah battery, and 20” fat tires, it’s a machine that demands attention—and delivers results. I first spotted it online, drawn in by its sleek black frame and promises of a 30 mph top speed, and I couldn’t resist taking it for a spin. Since its launch, it’s become a standout in Euybike’s lineup, evolving with upgrades like larger battery options to keep pace with rider demands.
Euybike, the company behind this beast, has been in the e-bike game since 2014, starting with foldable models that earned them a loyal following. Based on their ethos—“Excellent, Ultrafast, and Young”—they’ve built a reputation for affordable, dynamic rides. The S4 marks a bold departure as their only non-foldable model, launched a couple of years back and refined since with tweaks to battery life and suspension. It’s clear they’re aiming to capture a broader audience, from urban commuters to weekend warriors, and after testing it extensively, I can see why it’s turning heads.
Is the Euybike S4 for You?
The Euybike S4 tackles a pressing need: it’s a fast, comfortable, and green alternative to gas-guzzling scooters or cars. I’ve used it to zip to the grocery store, cutting my travel time in half compared to walking, and taken it on leisurely rides through local parks just for the thrill. It’s perfect for anyone who wants to shrink their carbon footprint without sacrificing power—think city slickers dodging gridlock, outdoor enthusiasts craving off-road adventures, or taller riders (it fits my 5’11” frame like a glove, ideal for 5’7” to 6’5”).
This bike isn’t for everyone, though. If you’re a die-hard cyclist who lives for the burn of a manual ride, the S4’s throttle-heavy design might feel like cheating—I barely pedaled during my tests, relying instead on its motorized muscle. It’s also not for those needing a featherlight option; at 76 lbs, it’s a workout to lug up stairs. Budget-wise, it sits in the middle ground—not a steal, but not a bank-breaker either. It offers serious bang for your buck compared to pricier competitors. For beginners, it’s a breeze to master. I had it humming along within minutes of setup, thanks to its straightforward controls and forgiving learning curve.
What We Like About the Euybike S4
The Euybike S4’s power is downright addictive. That 1000W motor (peaking at 3000W) had me flying down a local hill at 28 mph, grinning like a kid on a rollercoaster. I tested it on a steep incline near my house—a notorious 15% grade that’s humbled lesser bikes—and it powered up without a hiccup, even with my 200-lb frame onboard. The 48V 25Ah battery is a marathon runner, too. One weekend, I rode 45 miles round-trip to a friend’s place, mixing throttle and pedal assist, and still had juice left when I rolled home. Euybike claims 80+ miles with assist, and while I didn’t push it that far, it’s clear this bike can go the distance.
Comfort is where the S4 truly shines. The full suspension—dual crown front fork and rear shock—turned a bumpy gravel trail into a buttery-smooth ride. I took it off-road last week, bouncing over roots and rocks, and barely felt a jolt. The oversized saddle with memory foam is a godsend; after a three-hour ride to explore a nearby lake, I hopped off feeling fresh, not sore. Those 20” Kenda fat tires grip like a dream, too. During a rainy test ride, they clung to slick pavement, keeping me steady when lesser tires might’ve slipped.
Customization is the cherry on top. The settings menu lets you tweak speed caps, throttle sensitivity, and more. One evening, I dialed it down for a relaxed cruise through town, then cranked it up the next day for a high-speed blast on an empty road. It’s like having two bikes in one. For a mid-tier e-bike, the S4 punches above its weight, rivaling premium models in power and ride quality. It’s become my go-to for both practical trips and pure fun.
What We Don’t Like About the Euybike S4
Perfection’s a myth, and the S4 has its flaws. The weight is a beast—76 lbs feels like a small car when you’re hauling it up my apartment’s three flights of stairs. I tried storing it in a tight garage corner once, and maneuvering it around my car was a sweaty ordeal. If you lack ground-level storage or muscle, this could sour the experience. I’ve learned to plan my parking spots carefully, but it’s a hassle I didn’t anticipate.
The cadence sensor threw me off at first, too. It only kicks in after a few pedal turns, so starting from a dead stop feels laggy. During a busy intersection test, I fumbled a bit, pedaling awkwardly before the assist engaged. I adapted by using the throttle to launch, but it’s a quirk that grates if you lean on pedaling. Assembly was another hurdle. The bike arrives 95% built, but attaching the front wheel and tweaking the suspension took me an hour with the manual—and a few YouTube tutorials. For a non-mechanic like me, it was doable but intimidating.
The hydraulic brakes are solid, stopping me fast on a downhill run, but the rear disc squeaked loudly during a hard brake test in the rain. It’s not a dealbreaker, just an annoyance that breaks the otherwise sleek vibe. These gripes don’t ruin the S4, but they’re real considerations depending on your setup and riding style.
Pros & Cons
| Pros | Cons |
|---|---|
| Explosive 1000W motor | Hefty 76 lbs, tough to move |
| Epic 25Ah battery range | Cadence sensor lags on startup |
| Plush full suspension | Assembly takes time and effort |
| Deeply customizable settings | Rear brake squeaks under strain |
| Eye-catching moped design | Not for pedal purists |
What’s Included?
- Euybike S4 Electric Bike (95% assembled)
- 48V 25Ah removable lithium-ion battery
- Battery charger
- Front LED headlight
- Left and right pedals
- Toolkit (multi-tool, Allen wrenches, etc.)
- Manual air pump
- User manual
- Optional seat extension
Unboxing the S4 felt like Christmas morning. The bike comes nearly ready to roll, which saved me from a full day of wrenching. The toolkit is a lifesaver—tightening bolts and adjusting the fork was a cinch with the included multi-tool. The seat extension was a clutch addition for my long legs, stretching the saddle back just enough to avoid cramped knees. The air pump kept my tires topped off during a week of heavy riding, and the headlight lit up a dark trail like a spotlight, keeping me safe on a late-night spin.
I’m thrilled with the package overall—it’s got everything to get you started and then some. Still, I couldn’t help wishing for a rear rack; hauling groceries home on my back got old fast. Fenders would’ve been nice too, especially after a muddy ride left me speckled with dirt. These omissions aren’t dealbreakers, but they’d elevate the S4 from great to exceptional for daily use.
Technical Specifications
| Specification | Details |
|---|---|
| Motor Power | 1000W (3000W peak) |
| Battery | 48V 25Ah lithium-ion |
| Top Speed | 30 mph |
| Range | 80+ miles (pedal assist) |
| Weight | 76 lbs |
| Payload Capacity | 400 lbs |
| Tires | 20” x 4” Kenda fat tires |
| Brakes | Hydraulic disc brakes |
| Suspension | Full (front fork + rear shock) |
| Gearing | Shimano 7-speed |
Features
- 1000W High-Torque Motor: Blasts through hills and accelerates fast.
- 48V 25Ah Battery: Powers long rides without recharge anxiety.
- Full Suspension: Front fork and rear shock soak up rough terrain.
- 20” Fat Tires: Deliver unbeatable grip and stability.
- Hydraulic Disc Brakes: Stop on a dime, wet or dry.
- Adjustable Settings: Fine-tune speed and throttle response.
- LED Headlight: Cuts through darkness with ease.
- Shimano 7-Speed Gearing: Adapts to varied landscapes.
- Twist Throttle: Instant power, no pedaling required.
The S4’s features are a treasure trove of performance and practicality. The motor is a beast—I hit 30 mph on a flat stretch near my house, feeling the raw torque surge through the frame. The battery’s range blew me away; a 60-mile test loop through city and suburbs left me with 20% charge, proving its endurance. Suspension is a standout—I rode over a pothole-riddled backroad and barely noticed, the dual shocks eating up every bump. The fat tires gripped a sandy trail so well I felt invincible, even at speed.
The brakes are a mixed bag. They halted me fast during an emergency stop when a dog darted out, but that rear squeak in wet conditions nagged at me. The settings menu is a geek’s paradise—I spent an hour tweaking it, finding a sweet spot that balanced speed and battery life. The 7-speed Shimano gears are reliable but underwhelming; on steep climbs, I wished for a broader range. Still, the strengths dominate—this bike’s feature set is a powerhouse for the price.
Final Breakdown
9/10
The Euybike S4 earns a rock-solid 9 out of 10. It’s a near-flawless ride that blends power, comfort, and style into a package that’s tough to beat. The motor and battery make every trip a breeze—I’ve ditched my car for short errands entirely. The suspension and saddle kept me comfy on a five-hour adventure, and the customization let me tailor it to every mood. It’s not perfect—the weight slowed me down when storing it, and the cadence sensor hiccupped at starts—but these are minor dents in an otherwise stellar machine. For value and versatility, it’s a champ.
I can’t recommend the S4 enough if you’re after a moped-style e-bike that delivers. It’s a blast to ride, built to last, and perfect for commuting, exploring, or just soaking in the freedom of the road. Whether you’re a newbie or a seasoned rider, this bike’s got the goods to upgrade your journey.
