The headlights are equipped with four LED bulbs and the taillights with red emergency LED bulbs. At night, the lights can be set to constant mode and the taillights flash when the brakes are applied.
These are genuine reviews from real customers
0-5 PAS Levels
Adapt to Every Ride
Motor 1000W
Rear-Wheel Drive Motor
Max 350 Lbs
Weight Capacity 350 Lbs
48V 12.8Ah
Battery Capacity
Range 62 Miles
Single Charge Range
78 Nm
Max 20° Gradient
SGS Certification
UL2849
28 Mph
Max Speed
Gift Accessories
Order now and receive free fenders and rear rack,ebike headlight, adjustable Shock Absorbers,a total value of $436.
Bike Fenders
$79.00
FREE
Front Fork Suspension
$229.00
FREE
Aipas Ebike® headlight
$49.00
FREE
Aipas Ebike® Rear Rack
$79.00
FREE
Motor 1000W Power
Equipped with a 1000W outer rotor brushless DC motor. The motor features a 5-level pedal assist system (PAS). At level 1 PAS, the controller can deliver up to 78Nm of torque, while at level 5 PAS, the speed can reach 28MPH or higher. The motor utilizes a sinusoidal wave structure with a rotation speed of up to 3358 revolutions per minute (RPM). This BLDC motor is characterized by low interference, low noise, smooth operation, high speed, high temperature resistance, and an extended lifespan exceeding 100,000 hours, ensuring stability and reliability in various complex environments and prolonged rides.
Industry-Leading Battery Safety Standards
At Aipas, battery safety is our top priority. Each battery pack is engineered with a scientifically optimized internal layout and certified to meet MSDS, UN38.3, UN3171, UN3480, and SGS Certified UL2271. Our thermal safety protocols go far beyond industry norms—ensuring zero risk of open flames or thermal runaway even under temperatures as high as 149°F. An integrated thermal protection controller automatically shuts off power in case of overheating, giving you complete peace of mind and reliable protection on every ride.
Click [HERE] to your UL2271 certificate.
Ergonomic BMX handlebars
The A4 Gentry features adjustable BMX handlebars, allowing customers to adjust the angle based on their height and arm length. The BMX handlebars offer an adjustable range of 280 degrees, effectively addressing arm fatigue during long rides for all users. The combination of these handlebars with the four-link structure is highly ergonomic, conforming to ergonomic principles and enhancing comfort during extended periods of riding
Combo Sale Save More
Combo deals offer greater savings—ride together, double the fun.
- Lighting Configuration
- Fork suspension
- Folding Size
- Disc Brake
- 7-speed Shimano gearbox
- 20" x 3" Puncture Resistant Tires
Blue
White
Black
Cyan
Trust promises
Official Account
@Aipas Ebike
1 Year Warranty
All Ebikes backed by Aipas Limited Warranty
Learn more >
Fast Delivery
On your doorstep in just 3-8 days across 49 states.
Learn more >
Tax-Free
No 5%-15% sales tax on all products
Learn more>
14-Day Trial
Don't love it? Send it back to us!
Learn more >
A4 Gentry Assembly Instruction
Welcome to our A4 installation guide! This short video will show you how to easily assemble your new electric bike. The video provides clear steps and helpful tips to assist you.
User Manual
Follow us for the latest deals and updates
Evaluation By Influencers
-
@Fire and Ice Outdoor Gear 260K+ FOLLOWBudget Electric Bike With Powerful Motor!
With an affordable price and very good performance, is also very easy to assemble
Easy to install Casual riding Good for Short Rides Compact Design Affordable -
@The Papa's Kitchen 35K+ FOLLOWGood for a nice gift for a grandchild
The video takes viewers through the unboxing, assembly, and a test ride of the bike, highlighting its engineering and design features
Ride test easy assemble Smart Features Sturdy Build -
@Shopping with Amy 250K+ FOLLOWIs this an ebike lady can easily handle?
The Aipas A4 Gentry Ebike is a lightweight, folding electric bike ideal for commuting and exploring, offering power, range, and maneuverability
Powerful Motor lightweight Long Range Versatile Use Safety lights -
@Chris Crossed 15K+followAffordable choice
A4 folding ebike offers exceptional value by balancing power, portability, and commuter-friendly features at a budget price point.
Installation Guide Ride Test Off-Road Terrain Power Test Range Test -
@RVEnthusiast 5.4K+ FOLLOWThe AIPAS A4 features a foldable and compact design
Priced at $759, it offers great value for its features and performance.
Durable Strong Motor Portable Affordable Price Easy Assembly
Aipas Gentry A4 Folding Electric Bike Overview
The Aipas Gentry A4 Folding eBike blends power, portability, and performance in a compact, step-thru design that’s perfect for urban commutes, off-road exploration, or leisure rides. With its 1000W motor, advanced suspension, and lightweight frame, the A4 delivers an exceptional balance of comfort, style, and practicality for every rider.
Key Features
1. Exceptional Power
-
Motor: 1000W high-performance brushless motor
-
Torque: 78 Nm for strong acceleration and effortless hill climbing
-
Benefit: Handles diverse terrains—from city streets to countryside paths—with confidence and ease.
Optimize your motor performance with the Brushless Motor Controller for smoother, more efficient power delivery.
2. Smooth and Comfortable Riding
-
Tires: 20” × 3.0” fat tires for stability and traction on any surface
-
Suspension: Front hydraulic lock suspension for absorbing shocks and bumps
-
Brakes: 180mm dual disc brakes provide strong and responsive stopping power
-
Gears: Shimano 7-speed transmission for a versatile riding experience
For added comfort, pair it with the Extra Large Seat or Suspension Seatpost.
3. Foldable and Step-Thru Design
-
Frame: Step-thru frame for easy mounting and dismounting
-
Portability: Foldable design for simple transport and storage—ideal for car trips, RVs, or apartments
-
Comfort: Leather saddle and ergonomic handlebars ensure relaxed long-distance rides
-
Safety: Integrated front headlight and rear taillight for safe night riding
Add extra carrying capacity with the Front Basket or Hard Shell Rear Shelf Bag.
4. Long Range & Certified Safety
-
Battery: 48V 12.8Ah removable lithium battery
-
Range: Up to 62 miles per charge in pedal-assist mode
-
Certification: SGS Certification UL2849 for the highest battery safety standards
For longer journeys, upgrade to the A4 48V 14Ah Battery for extended range and durability.
5. Impressive Speed
-
Top Speed: 28 mph for fast, efficient commuting and recreational rides
Enjoy thrilling performance while maintaining complete control on every route.
6. Multiple Riding Modes
-
Modes: Cruise control, assist mode, sport mode, pedal assist mode, and pure electric mode
-
Transmission: Shimano 7-speed gearing system allows smooth, adaptive riding for all conditions.
7. Lighting and Safety Features
-
Lighting: Integrated brakes, headlights, and turn signals, all conveniently handlebar-controlled
-
Extra Safety: Separate horn and light buttons for quick alerting
Stay visible and secure on every journey—pair with the Lighted Cycling Helmet for added safety.
8. Lightweight and Portable
-
Weight: Only 55 lbs, making it one of the most portable eBikes in its class
-
Rider Height Range: Perfect for riders between 4'10" and 6'3"
Enjoy flexibility without compromising strength or balance.
9. Quick Charging
-
Charging Time: Fully recharges in just 4–6 hours, minimizing downtime and maximizing adventure.
10. Easy Assembly
-
Pre-assembled: 90% factory assembled with front wheel installed
-
User-Friendly: Quick and simple setup, even for first-time riders.
Summary
The Aipas Gentry A4 Folding Electric Bike offers a premium combination of power, comfort, and convenience in a stylish, foldable design. Its 1000W motor and 78Nm torque deliver confident performance across terrains, while the SGS Certification UL2271 48V 12.8Ah battery provides reliable range up to 62 miles. Lightweight yet durable, the A4 supports riders of all sizes and offers advanced lighting, safety, and control features.
Whether commuting, exploring, or relaxing, the Gentry A4 ensures an efficient, smooth, and stylish journey every time. Complete your setup with accessories like the Bike Lock and Cube Electric Air Pump to keep your ride secure and adventure-ready.
Vehicle Specifications
| Specification Name | Specification Value |
|---|---|
| Pedal Assist Range | 62 Miles |
| Electric-Only Range | 35 Mile |
| Top Speed | 28 Mph |
| Dimensions | 66*24*44(Inch) |
| Folded Dimensions | 32*22*28(Inch) |
| Max Load Capacity | 350Lbs |
| Ebike Net Weight | 55 Lbs |
| Battery Weight | 8 Lbs |
| Torque | 78 Nm |
| Tire Size | 20*3.0, 30psi |
| Battery | 48V*12.8AH IP65 Waterproof SGS Certified UL2271 |
Electric Motor Control
| Specification Name | Specification Value |
|---|---|
| Display | LCD Display |
| Pas Levels | 0-5 PAS |
| Throttle | Half-Twist Throttle / Optional Thumb Throttle. |
| Maximum Output | Output:48V/21A, With Temperature Control Protection |
| Motor | 1000W Rear Hub Brushless Motor. |
| Freewheel | Shimano 7-Speed Indexing |
| Rear Derailleur | Shimano 14-28T |
| Shifter | Shimano 7-Speed |
| Charger | 2A Smart Charger, UL/FCC Dual Certified |
Frame Assembly
| Specification Name | Specification Value |
|---|---|
| Front Suspension | Aluminum Adjustable Shock Absorbers |
| Front Suspension | Travel Total Length 375mm, Travel 60mm. |
| Handlebar | Riser Handlebar, Grip Length 125mm, Total Length 660mm |
| Pedals | Folding, 9/16", With Reflectors |
| Chain | 1/2"*3/32"*118l, 21-Speed Indexing |
| Crankset | 170mm Crank Arms, 52t Chainring |
What's in the box
Charger*1
Tire*2
Headlight*1
Battery
Keys*2
Pedal*2
Toolkit*1
User manual*1
Ebike Geometry
A -- :Maximum Seat Height
31"
B -- :Top Tube Length
24"
C -- :Handlebar Length
24"
D --: Head Tube Length
9"
E -- :Min Seat Height
22"
F -- :Stand Height
15"
G -- :Chain Stay Length
18"
H -- :Wheelbase
44"
I -- :Total Length
66"
J -- :Wheel Diameter
20"
K -- :Handlebar Height
46"
L -- :Max Handlebar Height
48"
M -- :Min Seat to Floor
30"
N -- :Max Seat to Floor
39"
O -- :Rear Rack Length
14"
Product specification
Explore Aipas Ebike lineup, Pick the best ebike for you
| Field name |
Sale Price
$699.00
Regular Price
|
Sale Price
$659.00
Regular Price
|
Sale Price
$739.00
Regular Price
|
Sale Price
$899.00
Regular Price
|
Sale Price
$899.00
Regular Price
|
|---|---|---|---|---|---|
|
|
|
|
|
| |
| Motor |
1000W
|
750W
|
1500W
|
1800W
|
1800W
|
| Battery |
48V 12.8Ah
|
48V 12.8Ah
|
48V 12.8Ah
|
48V 17.5Ah
|
48V 17.5Ah
|
| Torque |
78N.m
|
55N.m
|
100N.m
|
110N.m
|
110N.m
|
| Max Range |
62Miles
|
62Miles
|
62Miles
|
85Miles
|
85Miles
|
| Brakes |
Disc Brakes
|
Disc Brakes
|
Disc Brakes
|
Disc Brakes
|
Disc Brakes
|
| Total Length |
67"
|
66"
|
66"
|
80"
|
80"
|
| Handlebar Height |
46"
|
47"
|
47"
|
44"
|
44"
|
FAQs
Find quick answers to common questions
Pre Sale
What services are included in the sale price?
The price includes shipping insurance, a 1-year warranty, and unlimited technical support. We've also taken care of the 5%–15% sales tax for you—no additional tax will be charged at checkout.
Does my height suit the A4?
The recommended rider height is 4'10" - 6'3".
Do I need to assemble the bike?
We have already assembled 90% of the bike. You just need to tighten the wheel bolts, install the seat, and attach a few small components, and you'll be ready to go.
Why did I buy two e-bikes but only receive one tracking number or have them arrive at different times?
Since each e-bike is shipped separately, it’s possible that due to the shipping carrier, they may arrive at different times. Please don’t worry. If you have any questions, feel free to contact our customer service department for the latest updates.
Policy
What's your warranty policy?
Aipas offers a one-year warranty on all e-bikes, for more specific warranties, please check our warranty policy.
What's your return policy?
Customers are allowed to submit a return request within 14 days of delivery via service@aipasbike.com. For more specific return and refund, pls check our return policy.
What's your shipping policy?
Time of arrival includes order processing time and shipping time (3-5 working days).you can check more details on our Shipping Policy Page
Can’t find your answer?
Feel free to reach out to us!
C
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
So far it's really awesome. It was pretty easy to put it together and it was easy to figure out how to ride it. Then for the past several days we got a nor'easter so it rained and rained. I'm planning to take it to NH and do some trails. Best purchase I've made this year!!
L
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: DEPENDS ON SITUATION, HIGHLY RECOMMEND
I’m 61, and this is the most fun I’ve had in years! Thanks AirPas!
G
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
We’ve bought three A4 model E bikes we absolutely love the comfort and the smoothness of the ride on road and off road. highly recommend this model bike and AIPAS brand to anyone over any other brand
l
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
I am so very happy with the Aipas eBike. I have purchased 3 different brands in the last 4 years, for different reasons, and the Aipas brand is truly my favorite by far. And, to top it off - it is of a much more affordable price. I haven't had to call the company, but the videos and everything about it just seems flawless. I have had the chance to only ride the bike once so far, but again, it is terrific. I need to make a few adjustments as you would with any bike. But, I just Love this one! Thank you - Aipas, you made a great bike - wish I could have one of each model!
E
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
my girl is very happy with her beautiful new baby-blue Aipas A4 Gentry Ebike
She is 5'1(and 1/2) and it fits her perfect, for ex., she can remain on the seat during stops, it's not too heavy, and really cool how it can be folded in 1/2
M
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
Got my new A4 e-bike and was impressed buy how careful it was packed and shipped. The bike has so many extras that one would find on an e-bike oh great cost. The ride is awesome and the PAS helps the ride feel effortless. Way to Apais, you make a bike of great quality and easy to enjoy.
D
Performance: NORMAL
Value of money score: WORTH
Recommendation score: HIGHLY RECOMMEND
Haven't rode the bike much, it's cold here. I can give a better review later when the weather breaks and I can ride the bike while camping this spring and summer.
G
Performance: EXCELLENT
Value of money score: WORTH
Recommendation score: HIGHLY RECOMMEND
I like the PAS mode which helps me start out & assists me with maintaining a consistent speed. Bicycling is a much better form of exercise for me due to arthritis in my knees. I didn’t think I wanted an e-bike but now that I have one, what a wonderful piece of machinery!
L
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
The attention to details was incredible. I have owned an E bike for 5 years and all the improvements that I would have hoped for was on this bike. I appreciate the updates on delivery and came very quickly easy to put together and works great. Highly recommend and very happy!
M
Performance: EXCELLENT
Value of money score: WORTH
Recommendation score: HIGHLY RECOMMEND
I recommend this bike to anyone.Iys fun, nice power ,decent battery and fun to look at.
M
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
M
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
I received my A4 after a long wait, but it was worth it.
Easy assembly and great quality.
I got it to go 28 mph and thats fast.. it would be scary going any faster.
I’m really impressed by this bike at the price i paid.
T
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
The design is great!
C
Performance: NORMAL
Value of money score: WORTH
Recommendation score: HIGHLY RECOMMEND
This is a great bike. I'm 5'3" and needed a smaller ebike. I love the way it rides, shifts, pedal assist and regular bike gears. I absolutely love that in PA1 from a dead stop, you can use the throttle to get going. No fumbling with pedals to get started. Small caveat...if the kickstand isnt holding up the bike from falling, simply contact customer service and follow their instructions and battery is a little tricky to put in.
E
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
It took us a while to submit a review because, as soon as our F3 and A4 arrived, Wisconsin got hit with crazy cold weather for a week! Now that we've used them we couldn't be more happy! My wife made a FB post with us and our bikes and it got so many likes and comments. Also people asked about how we settled on Apias. The only thing we both had to replace was the seats. For us old people our behinds were pretty sore after riding for an hour.
R
Performance: NORMAL
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
My bike was delivered 01/27/2025 and I love this bike it's perfect for me except I haven't received my free gift that was suppose to come with it
Hi, if you purchased your ebike during the gift giving event, please contact us when you receive your ebike and we will arrange shipping for you.
B
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
Having custom built 4 electric bikes over last 12 years, I found this bike extremely well made and equipped. Any problem I had with setup was answered by email or phone without delay. Their customer service was very responsive and helpful. I would suggest they give directions in setup manual on the flip-up pedals that come standard on these bikes. Directions just say to put pedals on. By looking at them you would not know they flipped up. YouTube video very easy to understand and put together(I'm 71 yr old female). Also battery indicator will only work/charge if battery is in off position. The functions on this bike are over the top, including cruise control, front and back lights, directionals, warning buzzer on handle, pedal assist, and throttle, along with a walk mode. Brakes are very good but noisey. Hoping they quiet down after more miles added. My one suggestion is to make the flip up seat not flip up unless you pull lever to remove battery. It flips up if you try and pivot bike holding onto seat.I love the BMX handlebars and one of the main reasons for ordering this bike, they are much easier on my neck and shoulders and can adjust forward!
J
Performance: EXCELLENT
Value of money score: SUPER WORTH
Recommendation score: HIGHLY RECOMMEND
We love our ebikes. I purchased two A4 e bikes. We love the blue color and the bmx handle bars. The power is excellant. I would highly recommend thia ebike. Customer service answered my every question.
Can't wait to take our bikes camping.
A
What is the minimum rider height for this bike?
Minimum seat height for the A4 is 22 ″.