ALL Electric 
In the full review (10 sections)
Should you buy one?
Buy the Ranger Air M-540 if you want a dual-motor step-through for steep hills. The front motor pulled me up steep inclines (1:35 to 1:45), and I said it has plenty of power (2:11 to 2:14). It also has a fork plus a rear shock (1:45 to 1:51), hydraulic brakes and a throttle that works from a stop (1:17 to 1:22). I tested it for several weeks (0:16 to 0:19).
Skip it if you need to lift your bike. Freesky lists it at 95 lb. Also skip it if you want dual motor all the time without pressing a button. It starts in rear-wheel drive every time (0:48 to 1:05).
The deciding factor: hills. If yours are steep, the second motor is the reason to buy it.
See the Ranger Air M-540 at Freesky ($1,399 on freeskycycle.com as of Oct 23, 2026. My video description says this link takes $80 off; see Price below for the site’s own code. Affiliate link; it doesn’t cost you any more.)
Quick specs
| Spec | Freesky Ranger Air M-540 |
|---|---|
| Type | Dual-motor step-through fat-tire bike with rear rack (0:09 to 0:14, 1:52 to 1:58) |
| Motors | Front and rear (0:09 to 0:14); 2,000W + 2,000W peak, 105 Nm each (Freesky) |
| Drive mode | Starts in rear-wheel drive; a button switches to dual (0:48 to 1:05) |
| Battery | 48V 25Ah (1,200Wh), IPX7 (Freesky) |
| Rated range | 60 to 105 mi single motor, 40 to 60 mi dual (Freesky) |
| Top speed | 34 mph (Freesky) |
| Unlock | NFC card or passcode (0:33 to 0:45) |
| Throttle | Thumb, works from zero (1:20 to 1:22) |
| Pedal assist | Levels 0 to 5, cadence sensor (Freesky) |
| Brakes | Hydraulic (1:17 to 1:20); 180mm 4-piston (Freesky) |
| Suspension | Fork plus rear shock (1:45 to 1:51); 120mm oil fork, 180mm coil rear (Freesky) |
| Tires | 26 x 4 in (Freesky) |
| Gears | Shimano 7-speed (Freesky) |
| Lights | Big headlight (1:30 to 1:35); tail light and turn signals (1:58 to 2:05) |
| Charging | 3A charger (Freesky) |
| Weight | 95 lb (Freesky) |
| Max load | 400 lb (Freesky) |
| Rider fit | 5’3” to 6’8”; seat 35 to 41 in; step-through height 18 in (Freesky) |
Source note: times in parentheses are from my review video. Everything marked (Freesky) is from the Ranger Air M-540 product page on freeskycycle.com, checked Oct 23, 2026.
What I didn’t test
I didn’t run a range test, a top-speed test, or a braking test, and I didn’t weigh it. The range, 34 mph and 95 lb figures are Freesky’s. 34 mph is above the 28 mph Class 3 limit, so check your local rules.
Who it’s for
- Riders with steep hills (1:35 to 1:45).
- Riders who want a step-through with a rack (1:52 to 1:58).
- Riders who like a keyless start. It unlocks with an NFC card or a passcode (0:33 to 0:45).
Who should look elsewhere
- Anyone who carries a bike up stairs or onto a car rack (95 lb, Freesky).
- Riders who want dual drive to stay on. You press the button each ride (0:48 to 1:05).
How it compares
| Freesky Ranger Air M-540 | Mokwheel Obsidian | Bee Cool Adventurer | Segway Xyber Air | |
|---|---|---|---|---|
| Price | $1,399 (Oct 23, 2026) | $1,799.99 sale (Oct 2026) | $1,099 (Oct 22, 2026) | $1,999.99 MSRP (Oct 13, 2026) |
| Motors | Dual, 2,000W peak each, 105 Nm each | Single, 1,300W peak, 105 Nm | Single, 1,200W peak, 92 Nm | Single, 1,600W peak, 80 Nm |
| Battery | 1,200Wh | 48V 19.6Ah | 48V 21Ah | 717Wh |
| Weight | 95 lb | About 77 lb | 78 lb | 84 lb |
| Max load | 400 lb | 560 lb | 350 lb | 330 lb |
Rival specs are from the brands, as listed on my review pages for those bikes.
The Ranger Air is the only dual-motor bike here and has the biggest battery of the ones that list capacity in watt-hours. It’s also the heaviest.
Pros and cons
Pros
- Front motor helps on steep climbs (1:35 to 1:45)
- Fork plus rear shock, smooth “like a surfboard” (1:45 to 1:51)
- Great build quality (1:13 to 1:15)
- NFC card or passcode unlock (0:33 to 0:45)
- Hydraulic brakes and throttle from zero (1:17 to 1:22)
Cons
- Resets to rear-wheel drive each start (0:48 to 1:05)
- 95 lb (Freesky)
- I found the turn signals gimmicky (1:58 to 2:05)
FAQ
Is it always in dual-motor mode?
No. It starts in rear-wheel drive. You press the circle button to switch on the front motor (0:48 to 1:05).
How far does it go?
Freesky rates 60 to 105 miles on one motor and 40 to 60 on both. I didn’t test range.
Will it fit me?
Freesky lists riders from 5’3” to 6’8”, with an 18 in step-through height.
Price
As of Oct 23, 2026, freeskycycle.com lists it at $1,399 in four colors. The site also shows a code, B100, for $100 off. Check the cart to see which discount applies; I didn’t test whether they stack.
Check the Ranger Air M-540 at Freesky (affiliate link; it doesn’t cost you any more)
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“And though a man might prevail against one who is alone, two will withstand him—a threefold cord is not quickly broken.” Ecclesiastes 4:12 (ESV)
