Volt & Velo

Aipas A2 Review: A Switchable-Class Folding Fat-Tire E-Bike

What the Class 1/2/3 toggle really buys you on a value folding fat-tire bike — the Aipas A2's specs, the honest range caveat, and who it's for.

By Stephen V.Last updated How we pick

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What it is

The Aipas A2 is a 20-inch folding fat-tire e-bike whose standout feature is a switchable class: you can set it as a Class 1, 2 or 3 e-bike. That is a more useful feature than it sounds, and it is the main reason the A2 earns a place among the Amazon-carried value bikes. Underneath it is a conventional value folder — a 750 watt motor, a 614 watt-hour battery, and fat tires on a step-through folding frame.

Why the class toggle matters

E-bike access rules are set by class. A Class 3 bike (28 mph pedal-assist) is barred from a lot of bike paths and shared trails, while a Class 1 or 2 bike (20 mph) is allowed almost anywhere a bicycle is. A switchable bike lets you have it both ways: keep it in the lower class for legal path riding, and unlock the higher speed only on roads where it is permitted. If you are unsure what applies where you ride, our classes and laws guidebreaks it down — and the honest move is to leave the bike in Class 2 unless you have checked.

Range and the brand caveat

The 614 Wh battery is a solid mid-size pack, better than the small-battery budget bikes but short of the 700 Wh-plus range champions. Treat the “up to 62 miles” as a best case and plan around the watt-hours. Aipas also does not publish a weight, and it is a less-established brand than the GoTrax/Heybike tier, so there is a little more unknown here — read the critical reviews and insist on a certified battery before you buy.

Who should buy it — and who should skip

Buy it if the switchable class is genuinely useful for where you ride, and you want a versatile folding fat-tire bike at a value price. Skip it if you want a longer-established brand (the Heybike Mars 2.0 is the safer-brand fat-tire folder) or maximum range (the Hiboy P7 carries a bigger battery). For a rider who bounces between bike paths and open roads, though, the class toggle is a real, practical advantage.

Frequently asked questions

What does the Aipas A2's switchable class mean?

It lets you set the bike as a Class 1, 2 or 3 e-bike — effectively capping its assisted top speed at 20 mph (Class 1/2) or unlocking 28 mph (Class 3). That's genuinely useful: keep it in Class 2 for bike paths where higher speeds are barred, and only unlock Class 3 where your local rules allow.

What is the range of the Aipas A2?

Aipas claims up to 62 miles. The verifiable spec is a 614Wh battery, which is a solid mid-size pack. As with any budget e-bike, the real-world number — especially on throttle — will be well under the claim; plan around the watt-hours.

Is Aipas a reputable brand?

Aipas is a less-established name than GoTrax or Heybike, so it carries a bit more brand risk. The A2 itself is a conventional value folding fat-tire bike with reasonable published specs; as with any budget brand, read the critical reviews and insist on a certified battery.

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