Aipas · Fat tire
Full suspension, 110 Nm of torque and an 840 Wh battery on an easy step-through frame. Editor's score: 6.8/10.
Our own 0–10 scores, based on the spec sheet and buyer reviews. They're comparable across every bike on the site. How we rate.
Data from Amazon.com, completed with the manufacturer's site and other retailers when something was missing. If a figure isn't published by any reliable source, we say so.
| Rated power | 750 W |
|---|---|
| Peak power | 1,800 W |
| Torque | 110 Nm |
| Motor type | Rear hub |
| Top speed | — not publishedSource: Not listed on Amazon |
| Throttle | Yes |
| Battery capacity | 840 Wh |
|---|---|
| Voltage | 48 V |
| Removable battery | Yes |
| Range with pedal assist | 85 miSource: Amazon lists up to 85 miles with pedal assist |
| Range on throttle only | — not published |
| Charging time | 5 hSource: Amazon lists about 4–6 hours |
| Bike weight | 88 lb |
|---|---|
| Max load | — not publishedSource: Not listed on Amazon |
| Rider height | 5'5" to 7'2" |
| Wheel size | 26" |
| Tire width | 4" |
| Folding | No |
| Brakes | Front and rear 180 mm mechanical disc |
|---|---|
| Suspension | Front (100 mm, adjustable) and rear |
| Gears | 7 |
| Frame | High-carbon steel, step-through |
| Display | LCD |
| Lights | Headlight and brake-activated rear light |
| Safety certification | UL 2849 (SGS) |
| Warranty | 1 year |
| Hill climbing | Up to 23° (manufacturer figure) |
|---|---|
| Bigger version | Sold with a 52 V 936 Wh battery and hydraulic brakes for about $1,099 |
The Aipas M1 Pro is a heavy-duty fat-tire bike that is still easy to get on and off. Its step-through frame sits on 26 × 4-inch tires with an adjustable 100 mm fork and a rear shock, so it soaks up gravel, dirt paths and broken pavement better than almost anything else in our lineup.
The 750 W rear-hub motor peaks at 1,800 W with 110 Nm of torque, among the strongest figures we've seen, and Aipas says it climbs grades up to 23°. The removable 48 V 17.5 Ah battery (840 Wh) is one of the biggest here; Amazon quotes up to 85 miles with pedal assist and a 4–6 hour charge. A headlight, a brake-activated rear light, a horn and 7-speed gearing round it out.
The trade-offs are weight and brakes. At 88 lb it's the heaviest bike we review, hard to lift onto a rack or carry upstairs, and this version uses mechanical disc brakes; the 936 Wh version with hydraulic brakes costs about $160 more. Aipas also doesn't list a maximum load or top speed.
With 325 ratings and a 4.4 average, 85% of buyers give it 4 or 5 stars.
Best for: Riders who want maximum comfort and climbing power on rough roads and trails, with a frame that's easy to step through, and who don't need to lift the bike.
Our summary of the ratings published on Amazon.com.
325 ratings on Amazon
85% of 325 ratings are 4 or 5 stars and 8% are 1 star.
The smooth ride from the full suspension and fat tires, and the strong climbing power.
It's very heavy, so plan where you'll store it, and consider the hydraulic-brake version if you ride steep hills.
See how it compares with a similar bike.
The best pick in our lineup if space is tight or you want to carry it in your car.
The most powerful pick with the longest range, for riders who leave the pavement.
The most well-rounded folding bike in our lineup: real power, a big battery and it still folds.
