The AIPAS A4 Gentry is a compact, folding urban ebike designed to hit a sweet spot: 1000W peak power, 28 mph pedal assist, and up to 62 miles of PAS range in a package that still folds down small enough for apartments, trunks, and RVs.
With 20″ x ~3.0″ puncture-resistant tires, a low-step frame, and a one-piece die-cast alloy chassis, the A4 Gentry is built for riders who want a lightweight, packable city bike that doesn’t feel underpowered or flimsy.
This review focuses on what matters when you’re close to buying: motor feel, real-world range, comfort, portability, and who this bike actually fits best.
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👉 Check current price, colors, and availability for the AIPAS A4 Gentry Ebike here.
TL;DR – AIPAS A4 Gentry at a Glance
If you’re already deep in research and just want confirmation: the A4 Gentry is a folding low-step commuter with a 1000W rear hub motor, 48V 12.8Ah battery, and a 62-mile max PAS range. It’s aimed at city riders, RV travelers, and multi-modal commuters who want real speed and torque without the bulk of a full-size fat bike.
| Category | Details |
|---|---|
| Bike type | Folding, low-step urban/commuter ebike |
| Motor | 1000W peak rear hub brushless motor, 78 Nm |
| Battery | 48V 12.8Ah removable pack (IP65, UL2271) |
| Top speed (PAS) | Up to 28 mph (unlocked) |
| Top speed (throttle) | Up to ~20 mph (Class 2 style) |
| Claimed PAS range | Up to 62 miles |
| Claimed throttle range | Up to 30 miles (electric-only) |
| PAS levels | 0–5 |
| Bike weight | 55 lb |
| Max load | 350 lb total payload |
| Tires | 20″ x ~3.0″ all-terrain puncture-resistant tires |
| Brakes | Mechanical disc brakes, 160 mm rotors |
| Folded size | ≈ 32″ x 22″ x 28″ (L x W x H) |
| Rider height range | 4’10” – 6’3″ recommended |
| Best for | Urban commuters, RV/travel riders, heavier riders who still want a compact folder |
👉 See current photos, color options, and bundle deals for the A4 Gentry here.
Key Specs & Sizing (At a Glance)
Core Specs
| Spec | A4 Gentry Details |
|---|---|
| Motor | 1000W peak rear hub brushless DC motor (BAFANG sub-brand) |
| Torque | 78 Nm (max), rated for up to 20° gradients |
| Battery | 48V 12.8Ah removable pack, IP65, UL2271-certified |
| Controller | 48V / 21A max with temperature protection |
| Top speed (PAS) | Up to 28 mph |
| Top speed (throttle) | Up to ~20 mph |
| PAS levels | 0–5 |
| Claimed PAS range | Up to 62 miles |
| Claimed throttle range | Up to 30 miles (electric-only) |
| Bike weight | 55 lb (net) |
| Max load / payload | 350 lb |
| Frame | One-piece die-cast alloy, low-step design |
| Wheels & tires | 20″ wheels, ~3.0–3.2″ puncture-resistant all-terrain tires |
| Brakes | Front & rear mechanical discs, 160 mm rotors |
| Drivetrain | Shimano 7-speed freewheel and shifter |
| Display | Full-color 48V LCD with USB charging |
| Throttle | Half-twist throttle (thumb option supported) |
| Charging time | ~4–6 hours with 2A smart charger |
Geometry (Reference Data)
| Measurement | A4 Gentry Numbers (approx.) |
|---|---|
| Total length (unfolded) | 66″ |
| Wheelbase | 44″ |
| Wheel diameter | 20″ |
| Handlebar length | 24″ |
| Handlebar height | 46″ (up to ≈ 48″) |
| Top tube length | 24″ |
| Stand-over (stand height) | 15″ |
| Min seat height (frame) | 22″ |
| Max seat height (frame) | 31″ |
| Seat-to-floor (min–max) | ≈ 33″ – 41″ |
| Rear rack length | 14″ |
| Folded dimensions | ≈ 32″ x 22″ x 28″ (L x W x H) |
| Recommended rider height | 4’10” – 6’3″ |
| Bike weight | 55 lb |
| Max payload | 350 lb |
Low stand-over, a compact wheelbase, and a genuine fold make this a good match for shorter riders, tight storage spaces, and RV setups.
Motor, Speed & Power Delivery
The A4 Gentry’s 1000W rear hub motor and 21A controller put it on the stronger side of folding commuters.
AIPAS highlights:
- 1000W brushless DC motor (BAFANG sub-brand)
- 78 Nm torque
- 5 PAS levels up to ~28 mph
- Sinusoidal controller tuned for smooth, low-noise power delivery
In practical terms:
- Starts: Noticeably stronger launch than typical 500–750W folders—useful for heavier riders or starting uphill.
- Hills: Handles typical city gradients well; on very steep climbs you’ll still want to pedal, but it pulls better than budget 500W setups.
- Cruising: PAS 3–5 will comfortably live in the high-teens into mid-20s mph, with ~28 mph as a realistic top when conditions allow.
Out of the box it behaves like a Class 2–style folder; higher PAS speeds up to ~28 mph are available when unlocked. You’ll want to set the top speed and PAS behavior to fit your local rules and riding environment.
Battery & Range: 48V 12.8Ah for Daily Use
The 48V 12.8Ah (≈614 Wh) battery is frame-integrated and removable, which keeps the center of gravity low and makes charging off-bike easy.
Headline numbers:
- Capacity: 48V 12.8Ah (≈614 Wh)
- Claimed PAS range: up to 62 miles
- Claimed throttle range: up to 30 miles
- Charging time: ~4–6 hours with the included 2A charger
AIPAS emphasizes safety here with UL2271 battery certification and thermal protections designed to cut power before the pack overheats.
Real-World Range Planning
Brand charts for the A4 Gentry suggest:
- PAS 1 (~9 mph): up to ~62 miles
- PAS 3 (~17 mph): around ~40 miles
- PAS 5 (~28 mph): around ~27 miles in ideal conditions
For day-to-day riding, a good planning range is:
- 20–35+ miles for heavier riders using PAS 3–5 in mixed terrain
- 30–45+ miles for lighter riders using lower PAS levels on flatter routes
You’re not chasing fat-tire 1000+ Wh range here, but for a 55 lb folding bike, this is a practical balance between weight, cost, and real-world usability.
Brakes, Safety & Electronics
Brakes
- Mechanical disc brakes front and rear
- 160 mm rotors
- Metal pads with motor cut-off levers
They’re simpler than hydraulics but appropriate for a 55 lb folder and easier for many owners to tweak at home. AIPAS quotes a 9.5 ft stopping distance from 28 mph under test conditions; even allowing for real-world variation, the setup is clearly tuned for the bike’s speed and weight.
Safety & Control
- UL2271 battery and system-level safety testing
- Full-color LCD display with USB charging for your phone or GPS
- Half-twist throttle plus cruise control (set a speed with the throttle, then hold “–” to maintain it until you brake)
For apartment, office, or RV storage, that extra attention to certification and thermal management is reassuring.
Ride Feel, Handling & Terrain
The A4 Gentry is designed first as a city and travel bike, but the tire size and fork give it more leeway than a skinny-tire folder.
Where It Feels Most at Home
- City streets and bike lanes
- Suburban neighborhoods and greenways
- Park paths, light gravel, campground roads
- RV parks and travel stops
The 20″ wheels with ~3.0″ tires give:
- More grip and comfort than narrow commuter rubber
- Sharper, more nimble steering than large 26″ fat tires
- Less rolling drag than 4″ tires at the same pressure
A short 44″ wheelbase and compact frame make the bike quick and easy to place at low speeds. At 20–25 mph it still feels solid thanks to the one-piece frame and low center of gravity.
For frequent technical off-road riding, rocky singletrack, or deep sand/snow, you’ll want a dedicated fat-tire off-road build instead. For “city plus some light exploring,” the A4’s handling is well matched.
Comfort, Fit & Ergonomics
Comfort is driven by the front suspension, 3″ tires, and adjustable cockpit.
Comfort Features
- Front suspension fork with ~60 mm travel and basic adjustment
- 20″ x ~3.0″ tires that can be run at moderate pressures for extra cush
- Ergonomic BMX-style bar with a broad adjustment range
- Sturdy one-piece frame that feels solid without beating you up
Fit Window & Rider Height
With a recommended range of 4’10″–6’3″, the A4 Gentry is intentionally inclusive:
- Shorter riders benefit from the 15″ stand-over, compact wheelbase, and easy step-through feel.
- Taller riders can raise the seat and bars to get a more upright, relaxed position without feeling cramped in the cockpit.
If you’re at the extremes of that range, it’s worth comparing the seat-to-floor and stand-over numbers to a bike you already ride confidently, but most riders in that band should be able to dial in a reasonable fit.
Utility & Everyday Use
Beyond the core ride, the A4 Gentry is set up to handle errands, commuting, and travel.
Everyday Utility Features
- Rear rack to mount bags, baskets, or a child seat (within weight limits)
- Full fenders to keep road spray off you and your clothes
- USB charging at the display for your phone or lights
- Removable battery so you can lighten the bike for lifting or charge indoors
- Folding pedals and frame to tuck into closets, trunks, RV bays, or under a desk
If you juggle apartment living, commuting, and occasional road trips, this combination is exactly what makes a folding ebike worth it.
👉 You can check current A4 Gentry bundle options (rear basket, panniers, etc.) on the product page.
Pros & Cons
Pros
- 1000W rear hub motor with 78 Nm torque—strong for a folding bike
- 48V 12.8Ah battery with UL2271 certification and thermal protections
- Relatively light at ~55 lb with a generous 350 lb payload rating
- Compact fold (~32″ x 22″ x 28″) that genuinely fits apartments, trunks, and RVs
- Wide rider height range (4’10″–6’3″) with low stand-over and adjustable bars
- All-terrain 20″ x ~3.0″ tires and front suspension for mixed surfaces
- Comes well-equipped (rack, fenders, lights, shock), so you’re not nickel-and-dimed on essentials
Cons
- Mechanical disc brakes, not hydraulic—simpler, but not as powerful or low-maintenance as hydros
- ≈600 Wh battery is solid but not ultra-long-range if you live at high PAS and high speeds
- Smaller wheels can feel more reactive on very rough surfaces than larger 26″+ setups
- At 55 lb, it’s light for an ebike but still a haul if you carry it up stairs frequently
- Unlocking higher PAS speeds means you should pay attention to local e-bike rules
Who the AIPAS A4 Gentry Is Best For
The A4 Gentry is a strong match if:
- You want a folding ebike that’s clearly more powerful than a 500–750W folder
- You live in a city, suburb, or travel full-time and storage space is at a premium
- You’re a heavier rider or carry cargo and don’t want the bike to feel flexy or underpowered
- You prefer a low-step style frame that’s easy to mount and dismount
- You spend most of your time on pavement, bike paths, and light gravel, not technical singletrack
Who Might Want a Different Bike
You might want to look elsewhere if:
- You ride mainly on technical trails, deep sand, or very rough terrain—a full-size fat bike will serve you better.
- You absolutely want hydraulic brakes and don’t mind more weight and bulk.
- You never need to fold or store compactly, and would benefit from a full-size 26″ or 27.5″ platform instead.
- You have to carry your bike up multiple flights of stairs every day and would prefer something even lighter or non-electric.
Final Thoughts: Is the AIPAS A4 Gentry Worth It?
If you’ve narrowed your search to folding commuter ebikes and don’t want to give up power, range, or real-world utility, the AIPAS A4 Gentry is easy to keep on the shortlist.
You’re getting:
- A 1000W motor + 48V 12.8Ah battery in a 55 lb folding frame
- Up to 62-mile PAS range on paper, with realistic 20–40+ mile use for most riders
- A strong safety story with UL-focused battery design
- A fold that’s genuinely compact enough for apartments, trunks, and RVs
It’s not the right pick for hardcore off-road riding or for riders who never need to fold a bike at all. But for urban commuters, RV travelers, and anyone who wants a portable, low-step ebike that doesn’t feel like a toy, the A4 Gentry is a very solid option.
