Aipas M2 ProvsAndsky Apex 50
Two full-suspension fat tire e-bikes targeting the same first-time budget buyer. One is UL-certified, US-stocked, and under $1,000. The other ships from Hong Kong with bigger peak-watt numbers — and bigger question marks. We scored eight rounds on confirmed specs and documented owner feedback.
Fat Tire Showdown
Every relevant spec pulled directly from manufacturer pages. Winners highlighted in each row — and the rows where Andsky publishes nothing are highlighted too, because missing specs are information.
| Specification | 🏔️ Aipas M2 Pro | 🌏 Andsky Apex 50 |
|---|---|---|
| Price | Under $1,000 | $1,199 (48V) $1,399 (52V) |
| Motor (Peak) | 1,800W Bafang hub | 3,000W dual (2 × 1,000W rated) |
| Torque | 110 Nm | 190 Nm combined (claimed) |
| Battery | 48V 17.5Ah (840 Wh) | 48V/52V 25Ah (1,200–1,300 Wh) |
| UL Certification | UL2271 + IP65 ✓ | None listed |
| Range (claimed) | Up to 85 mi PAS / 36 mi throttle* | 60–100 mi* |
| Top Speed | 36 mph (unlocked) | 32–35 mph |
| Suspension | Full — adj. hydraulic fork (~100mm) + rear | Full — front fork + rear shock |
| Brakes | Hydraulic disc | Hydraulic disc |
| Drivetrain | Shimano 7-speed | Shimano 7-speed |
| Tires | 26″ × 4.0″ puncture-resistant | 26″ × 4.0″ |
| Payload | 500 lb | Not consistently published |
| Bike Weight | ~90 lbs (published) | Not published |
| Ships From | US stock · 3–5 working days | Overseas · 7–15 days |
| US Service | US-based support | Hong Kong based — no US network |
| Warranty | 1-year | Overseas claims process |
| Return Policy | 14-day | Return ships overseas |
*All range figures are manufacturer-stated maximums. Real-world range is typically 55–65% of claimed figures on mixed terrain.
Eight categories that matter most for real-world budget fat tire buyers. Each round has a clear winner — or a tie. We score on facts, including the two rounds Andsky genuinely wins.
One of the lowest prices anywhere for a genuine full-suspension fat tire e-bike. Independent reviewers have noted the M2 Pro offers features typically found on bikes costing nearly double — adjustable hydraulic fork, rear shock, hydraulic brakes, and a UL-certified battery, all under four figures. At this end of the market, every dollar matters, and the cheaper bike here is also the safer purchase. That’s rare.
$200–$400 more than the Aipas — and that’s after a perpetual “$300 off” promotion baked into the listing. The premium buys a bigger battery and a second motor, but loses UL certification, US-based support, and fast domestic shipping. Paying more to take on more risk is a hard sell for the first-time buyer this bike is marketed to.
110 Nm
The single 1,800W-peak Bafang rear hub delivers 110 Nm — plenty for moderate hills, mixed terrain, and riders within the (massive) 500 lb payload rating. The 36 mph unlocked top speed already exceeds what US law allows on public roads. The honest limitation: it gives up real ground to a dual-motor setup on loose, steep climbs where all-wheel traction matters.
190 Nm claimed
Credit where it’s due: two motors beat one. The claimed 190 Nm combined torque and AWD traction is a real advantage on loose climbs and sand. One note on the marketing math — “3,000W peak” is the sum of two motors rated at 1,000W each, a momentary burst figure rather than sustained output. The Andsky is genuinely more powerful, but the gap is smaller than 3,000-vs-1,800 implies.
The 48V 17.5Ah battery is UL2271 certified — independently tested against thermal runaway, the failure mode behind e-bike battery fires — and IP65 rated. It’s removable, so you can charge it away from the bike. With cities and apartment buildings increasingly restricting uncertified e-bike batteries, this certification is becoming a requirement, not a bonus.
Andsky publishes no UL 2849 or UL 2271 certification anywhere in its product pages or documentation that we could find. For a 1,200–1,300 Wh pack charging inside a garage or apartment, that’s not a paperwork detail. The Apex 50 also sells in mixed 48V and 52V configurations, and Andsky’s own materials warn the two voltage systems can’t be interchanged without risking damage — an easy and expensive trap for first-time buyers.
85 mi claimed
Real-world expectation: roughly 45–55 miles in pedal assist, ~25 miles throttle-only. Plenty for day rides and commuting, short of true all-day adventure range. If maximum range is your priority, UL-certified dual-battery options like the Freesky Alaska Pro M-520 (2,160 Wh) solve the problem without the certification gamble.
60–100 mi claimed
Roughly 50% more energy on board than the M2 Pro — a genuine capacity win. Two things temper it: the claimed ranges barely differ, because dual motors drink the extra watt-hours, and a bigger uncertified battery is a bigger version of the Round 3 problem. The capacity is real; what’s protecting it is the open question.
Adjustable hydraulic front fork with roughly 100mm of travel plus a rear shock — genuinely uncommon at this price, and independent off-road testing has praised the suspension comfort over rough terrain. Optional suspension seatpost and oversized saddle extend the comfort range further for long days.
The Apex 50 pairs a front fork with an integrated rear shock — on paper, equivalent equipment, and owners who like the bike consistently praise the ride quality. Both bikes deliver real full suspension in a budget class where most competitors fake it with a suspension seatpost. On pure suspension hardware, neither bike clearly beats the other.
Aipas publishes the numbers buyers actually need: ~90 lb curb weight, 500 lb payload, UL certification, IP rating, fork travel, and a throttle-only range figure alongside the best-case PAS claim. The published fit window is wide, with tall-friendly geometry. You can make a fully informed decision before you click buy.
Andsky publishes no weight for the Apex 50 — unusual for a dual-motor, big-battery fat bike that owners describe as extremely heavy. Payload and IP ratings are absent or inconsistent across listings. Owner reviews also flag two practical issues: a minimum seat height too tall for shorter riders (the integrated rear shock limits saddle drop — riders under ~5’8″ beware), and controller programming menus that are complex and poorly documented.
Ships from US warehouses in 3–5 working days, backed by a 1-year warranty and a 14-day return window through US-based support. Standard stuff — which is exactly the point. When a 90 lb e-bike has a problem, “who fixes it and how fast” is the most underrated spec in the budget market.
Hong Kong based with no US service network. Delivery runs 7–15 days, and every warranty claim, replacement part, or return travels the same route in reverse. On a heavy, electronically complex dual-motor machine with poorly documented controllers, overseas-only email support is the weakest link in the entire package. This round isn’t close.
The Bafang hub motor is the most widely serviced motor platform in the industry — any e-bike shop can source parts. The UL-certified battery is replaceable through normal channels, and Aipas sells spares and accessories from US inventory. Three years from now, this bike is straightforward to keep on the road.
Dual motors mean twice the controllers, twice the wiring, and twice the potential failure points — supported only by overseas email. The 48V/52V split means buying the wrong charger or replacement battery can damage the bike. Long-term, the Apex 50 is a parts-sourcing project waiting to happen, and the buyer it’s marketed to is the least equipped to handle it.
Our take: The Andsky Apex 50 wins the rounds you can read on a spec sheet — peak power and battery capacity. The Aipas M2 Pro wins the rounds you live with: it’s $200–$400 cheaper, its battery is UL2271 certified, every core spec is published, it ships from US stock in days instead of weeks, and there’s a US support operation behind the warranty. For the budget first-time buyer both bikes target, this is a clear decision.
Why we don’t recommend the Andsky Apex 50: Not because the design is bad — because an uncertified high-capacity battery, overseas-only support, unpublished core specs, a 48V/52V compatibility trap, and documented fit and controller complaints are five risks a first-time buyer shouldn’t absorb at a higher price than the alternative. The rider the Apex 50 actually suits — an experienced tinkerer who can service dual controllers and charge an uncertified pack safely outdoors — isn’t the rider Andsky markets to.
🏆 Buy the Aipas M2 Pro If:
- You want a real full-suspension fat tire e-bike under $1,000 — the best value in this matchup by a wide margin
- You charge your battery indoors, or your building or insurance requires UL-certified packs
- You’re a heavier rider — the 500 lb payload rating is among the highest in the class
- You want US shipping in days, a US support line, and a 14-day return window
- You want a Bafang motor platform any local e-bike shop can service for years
- You’re a first-time buyer who wants published specs, not spec-sheet blanks
Consider the Andsky Apex 50 Only If:
- You specifically need dual-motor AWD traction and accept the support trade-offs
- You’re an experienced e-bike tinkerer comfortable programming undocumented controllers
- You can charge a non-UL-listed 1,300 Wh pack safely outdoors, away from structures
- You’re prepared to wait 7–15 days for delivery and handle warranty issues by overseas email
- You’re taller than 5’8″ — shorter riders consistently report the seat height doesn’t work
- Even then: the Philodo H8 60V offers dual-motor power with a UL-certified battery for buyers who want both
1800W peak Bafang · UL2271 + IP65 battery · 500 lb payload · full suspension · US stock, 3–5 day shipping · 1-yr warranty · 14-day returns.
Shop Aipas M2 Pro → Affiliate link — we earn a commission at no extra cost to youWant more than the M2 Pro but not the Andsky risk? The RX80 adds a double-crown fork, Shimano 8-speed, and a 2-year free US service network at the same price point. Dual battery option ~$1,299.
Shop Burchda RX80 → Affiliate link — we earn a commission at no extra cost to youAndsky does not list UL 2849 or UL 2271 certification for the Apex 50 anywhere in its published product information. The Aipas M2 Pro’s battery is UL2271 certified and IP65 rated. UL certification means a battery has been independently tested against thermal runaway — and a growing number of cities, apartment buildings, and insurers now restrict or refuse uncertified e-bike batteries. If you charge indoors, treat certification as a requirement, not a nice-to-have.
Yes — that’s the round Andsky wins. The Apex 50’s dual hub motors produce a claimed 190 Nm of combined torque versus 110 Nm for the M2 Pro’s single Bafang hub, and dual-motor AWD traction helps on loose, steep terrain. Keep the marketing math in perspective: “3,000W peak” is the sum of two motors rated at 1,000W each at momentary peak, not sustained output. For most riders on most terrain, the M2 Pro’s 110 Nm and 36 mph unlocked ceiling is already beyond what’s road-legal in the US.
Andsky is based in Hong Kong, ships overseas with quoted delivery of 7–15 days, and has no US service network — warranty claims, replacement parts, and returns all go through overseas support. Aipas ships from US stock in 3–5 working days, with US-based support, a 1-year warranty, and a 14-day return window. For a 90 lb electronically complex machine, the support gap is the single biggest practical difference between these two bikes.
Unknown — Andsky does not publish a weight specification for the Apex 50, which is unusual for a dual-motor, 25Ah-battery fat bike. Owner feedback consistently describes it as very heavy, in line with what the hardware implies. The Aipas M2 Pro’s published weight is approximately 90 lbs. When a manufacturer publishes its flattering numbers and omits the inconvenient ones, factor that into your trust accordingly.
The Aipas M2 Pro. Owner reviews of the Apex 50 consistently report a minimum seat height that’s too tall for shorter riders, because the integrated rear shock limits how far the saddle can drop. Riders under roughly 5’8″ should be especially cautious — and with no US showroom or dealer network, there’s no way to test-fit an Andsky before buying. The M2 Pro publishes a wide fit window and sells fit accessories from US stock.
That combination exists — you don’t have to choose between power and safety. The Philodo H8 60V pairs a 5,000W peak dual-motor setup with a UL-certified 1,500 Wh battery, IPX6 waterproofing, and a US service reputation. It costs more than the Apex 50, but it delivers everything the Andsky promises with the certification and support the Andsky lacks. See our full Philodo H8 60V vs. Aniioki A9 Pro Max comparison for the high-power dual-motor breakdown.