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EUY A8 Electric Bike — 48V 20Ah, Peak 1500W, 20×4.0 Fat Tires (Step-Through)

Top Highlights (Marketplace “5 Bullets”)

Long-Range Power: Massive 48V 20Ah (960Wh) removable battery delivers up to 70 miles per charge in PAS; fast, simple charging on or off the bike.
Strong & Smooth: 750W rear hub motor (1,500W peak) with approx. 85Nm torque for confident hill climbs and quick starts; top speed up to 28–30 mph (unlocked where legal).
All-Terrain Comfort: 20×4.0 puncture-resistant fat tires + front spring suspension tame potholes, gravel, snow, and sand; stable, step-through frame fits more riders.
Intuitive Control: Color LCD shows speed, battery, PAS level, trip & more; 5 PAS levels + throttle, 7-speed drivetrain, cruise & walk assist.
Everyday Utility: Full fenders, bright front & rear lights, long rear platform/rack; max load 330 lb, bike weight ~67 lb; recommended rider height 5’4″–6’4″.

For more details, please read our full review of the EUY A8 eBike.

Why Riders Love the EUY A8

Meet your new do-everything commuter. The A8 rides like a compact SUV—easy to step on, steady at speed, and unfazed by rough streets or mixed paths. The big 960Wh battery crushes range anxiety, while the punchy hub motor makes short work of hills and heavy loads. Add in the long rear platform for cargo or a passenger pad, and you’ve got weekday practicality with weekend adventure baked in.

Key Features

48V 20Ah Long-Range Battery (960Wh): Go farther between charges—ideal for multi-day commutes or long Saturday rides. Remove with the included keys for indoor charging.
750W Brushless Hub Motor (Peak 1500W): Confident launches and hill-flattening torque; strong mid-range pull for headwinds and grades (approx. 30% under ideal conditions).
20×4.0″ Fat Tires: Wide footprint adds grip and stability on city streets, gravel connectors, beach paths, and light snow.
Front Suspension Fork: Spring suspension absorbs potholes and curbs for a calmer ride.
Dual Mechanical Disc Brakes: Reliable, easy-to-service stopping power with widely available pads and cables.
5 Riding Modes & 5 PAS Levels: Normal pedal, PAS (1–5), throttle, cruise, and walk assist—choose how you ride, from fitness-focused to fully electric.
Clear Color LCD: At-a-glance speed, battery, PAS, trip, max/avg speed, and more—easy to read day or night.
Long Rear Platform/Rack: Ready for bags, baskets, or a passenger cushion (stay within rated payload and local rules).
Step-Through Comfort: Upright posture and easy mounting suit a wide height range and stop-and-go city riding.
Built for Daily Use: Full-coverage fenders, integrated lighting, sturdy kickstand, included tool kit, and straightforward assembly.

What’s in the Box

EUY A8 step-through e-bike (partially assembled)
48V 20Ah removable lithium-ion battery + 2 keys
Battery charger (AC)
Front & rear fenders (installed or included)
Integrated headlight & rear light
Rear platform/rack
Flat pedals
Basic tool kit & manuals

Tech Specs

Item	Details
Motor	750W rear hub (peak ~1,500W), brushless
Battery	48V 20Ah (960Wh), removable, frame-integrated
Display	Color LCD: speed, battery, PAS (1–5), trip, odometer, max/avg
Drivetrain	7-speed derailleur + shifter
Tires	20×4.0 in, puncture-resistant
Brakes	Dual mechanical disc brakes
Suspension	Front spring fork
Frame	Step-through, carbon-steel
Ride Modes	Normal pedal, PAS 1–5, throttle, cruise, walk assist
Claimed Top Speed	Up to ~28–30 mph (when unlocked; see local laws)
Claimed Range	Up to ~70 miles (PAS; riding conditions vary)
Rider Height	~5’4″–6’4″ (recommended)
Bike Weight	~67 lb
Max Payload	Up to ~330 lb (rider + cargo)
Dimensions	Approx. overall length 66 in; bar height ~45 in; minimum seat height ~34 in
Colors	Off-White / Black / Gray / Blue
Included	Fenders, lights, rear platform, charger, tools
Warranty	12 months on motor, battery, controller, charger (see policy)

Sizing & Fit

Step-through frame makes it easy to mount/dismount.
Recommended rider height: ~5’4″–6’4″.
Seat height: minimum ~34 in; tool-adjustable seatpost.
Handlebar: high-rise, upright posture for comfort and visibility.

Tip: For maximum comfort on rough streets, run slightly lower tire pressures within the sidewall range and consider adding a suspension seatpost later.

Range & Speed Guidance

Range up to 70 miles assumes light winds, flatter routes, moderate rider weight, and PAS 1–2.
Expect 30–45+ miles in mixed city use (PAS 2–3 with occasional PAS 4 and throttle starts).
Top speed depends on rider/cargo weight, tire pressure, grade, wind, and settings. Bike ships speed-limited; unlock higher assist only where legal.

Use Cases

Daily Commute: Stable at speed, raingutter-proof tires, integrated lights.
Errands & Cargo: Long rear platform + 330-lb payload for bags or a passenger pad.
Mixed-Surface Rides: Handles paved + gravel paths, boardwalks, and light off-road.
Four-Season Fun: Fat tires track confidently on sand and packed snow.

Care & Support

Assembly: Partially pre-assembled; typical setup includes handlebar, front wheel/fender, pedals, and accessories (30–60 minutes).
Maintenance: Keep tires inflated, lube chain, and adjust brakes/cables as needed.
Battery: Store between 20–80% when not riding, charge at room temperature, and avoid full depletion.
Support: 12-month limited warranty on motor, battery, controller, and charger; friendly after-sales assistance.

Safety & Compliance Notes

Always wear a helmet and follow local traffic laws.
Respect local e-bike classifications and speed limits; unlock higher speeds only for off-road/private property where permitted.
Check bolt tightness (rack, fenders, stem) after the first 50–100 miles.

Frequently Asked Questions

Q1: How long does a full charge take?
Typically 6–10 hours from low to full, depending on remaining capacity and ambient temperature.

Q2: Can I remove the battery for charging?
Yes. The 48V 20Ah pack is removable with the included keys—charge on or off the bike.

Q3: What’s the real-world range?
Most riders see 30–45+ miles in mixed city use (PAS 2–3). Hilly terrain, heavy cargo, high PAS, or steady throttle will reduce range; conservative PAS can exceed 60–70 miles.

Q4: Is the A8 suitable for winter?
The 20×4.0 tires offer excellent traction on cold, wet streets and packed snow. For icy conditions, ride cautiously and reduce tire pressure within the rated range.

Q5: Can I carry a passenger?
The long rear platform supports accessories (e.g., seat pad/pegs) and the bike is rated up to ~330 lb total. Always follow local regulations and ride within the limit.

Q6: What upgrades do riders commonly add?
Hydraulic brake kit, suspension seatpost, rear cargo baskets/pannier rails, side mirrors, and a bell.

Q7: Does it have throttle?
Yes—thumb throttle on demand, plus 5 PAS levels, cruise, walk assist, and normal pedal mode.

Q8: What tools are needed for assembly?
A basic tool kit is included. Having a torque wrench is helpful but not required.

What Sets the EUY A8 Apart

Most step-through fat-tire e-bikes in this class ship with 48V 14–15Ah batteries. The A8’s 48V 20Ah pack delivers materially more range while keeping the ride stable and approachable. If you want a long-range, easy-to-mount e-bike that’s ready for real city streets and weekend trails, the A8 is built for you.

Ready for a longer, smoother commute?
Add the EUY A8 Electric Bike to your cart and ride farther—every day.