Head to head
Aipas M1 Pro Step-Thru Fat Tire 26" vs FREESKY Rocky Pro Full-Suspension Fat Tire 20"
Two premium full-suspension fat-tire bikes. The Aipas M1 Pro has more torque and an easy step-through frame for less money; the FREESKY has a bigger 1,200 Wh battery and hydraulic brakes.
Aipas M1 Pro Step-Thru Fat Tire 26"
FREESKY Rocky Pro Full-Suspension Fat Tire 20"Quick verdict
On our scores, the FREESKY Rocky Pro Full-Suspension Fat Tire 20" comes out ahead (7.7/10 against 6.8/10), but the right choice depends on what you need most.
Choose the Aipas M1 Pro Step-Thru Fat Tire 26" if…
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.
Scores higher on: its overall balance.
Choose the FREESKY Rocky Pro Full-Suspension Fat Tire 20" if…
Riders who want one bike that can do long distances, steep hills, sand and trails, and are willing to pay for real brakes and suspension.
Scores higher on: power, equipment, value.
Editor's rating compared
Our 0–10 scores in six areas. How we rate.
- Aipas M1 Pro Step-Thru Fat Tire 26"
- FREESKY Rocky Pro Full-Suspension Fat Tire 20"
Specs side by side
★ marks the better figure in each row. Approximate prices as of October 27, 2026.
| Spec | Aipas M1 Pro Step-Thru Fat Tire 26" | FREESKY Rocky Pro Full-Suspension Fat Tire 20" |
|---|---|---|
| Summary | ||
| Editor's score | 6.8/10 | 7.7/10 |
| Price | $938.99 | $1,199.00 |
| Amazon rating | 4.4 ★ (325) | 4.8 ★ (36) |
| Motor and performance | ||
| Rated power | 750 W | — |
| Peak power | 1,800 W | 2,500 W |
| Torque | 110 Nm | 120 Nm |
| Motor type | Rear hub | Brushless hub, torque sensor |
| Top speed | — | 28 mph |
| Throttle | Yes | Yes |
| Battery and range | ||
| Battery capacity | 840 Wh | 1,200 Wh |
| Voltage | 48 V | 48 V |
| Removable battery | Yes | Yes |
| Range with pedal assist | 85 mi | 105 mi |
| Range on throttle only | — | — |
| Charging time | 5 h | — |
| Size and weight | ||
| Bike weight | 88 lb | 77 lb |
| Max load | — | 400 lb |
| Rider height | 5'5" to 7'2" | 5'1" to 5'11" |
| Wheel size | 26" | 20" |
| Tire width | 4" | 4" |
| Folding | No | No |
| Equipment | ||
| Brakes | Front and rear 180 mm mechanical disc | Hydraulic disc, 180 mm 4-piston |
| Suspension | Front (100 mm, adjustable) and rear | Full suspension, lockable hydraulic fork |
| Gears | 7 | 8 |
| Frame | High-carbon steel, step-through | Aluminum, step-through |
| Display | LCD | Color LCD, keyless start, USB-C port |
| Lights | Headlight and brake-activated rear light | — |
| Safety certification | UL 2849 (SGS) | UL 2849 (tested by TÜV) |
| Warranty | 1 year | 24 months motor, battery, controller, charger and frame |
Frequently asked questions
Which is better, the Aipas M1 Pro Step-Thru Fat Tire 26" or the FREESKY Rocky Pro Full-Suspension Fat Tire 20"?
On our 0–10 editor scores, the FREESKY Rocky Pro Full-Suspension Fat Tire 20" scores higher overall. The Aipas M1 Pro Step-Thru Fat Tire 26" is stronger on balance, while the FREESKY Rocky Pro Full-Suspension Fat Tire 20" is stronger on power, equipment, value.
Which one is cheaper?
At the time of our last check, the Aipas M1 Pro Step-Thru Fat Tire 26" was $938.99 and the FREESKY Rocky Pro Full-Suspension Fat Tire 20" was $1,199.00 on Amazon. Prices change often, so check the current price before you buy.