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Segway Xyber Air vs Fahrbike Roadster 73
I've reviewed both of these on my channel. The numbers below are from each brand's listing and my own testing; the takes are from my reviews. "Not listed" means I don't have a verified number for it yet.
Key differences
- The Fahrbike Roadster 73 lists for $1,100 less ($899 vs $1,999 in my review data).
- The Fahrbike Roadster 73 has the bigger battery: 720 Wh vs 717 Wh.
- Different styles: the Segway Xyber Air is a moped-style fat tire bike and the Fahrbike Roadster 73 is a moped-style bike.
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Segway Xyber Air
6.4 AEB Scorehow it worksA moto-style e-bike that pulled me up steep gravel climbs on the throttle, with strong brakes and more fun than I expected. Not the pick for pavement-only riders.
Fahrbike Roadster 73
6.8 AEB Scorehow it worksIf you want a budget moped-style e-bike, the Fahrbike Roadster 73 is the one I'd buy.
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Side by side
![]() | ![]() | |
|---|---|---|
| Price | $1,999 | $899 |
| Type | Moped-style fat tire | Moped-style |
| Motor | 750 W | 750 W |
| Battery | 717 Wh | 720 Wh |
| Rated range | 58 mi | 60 mi |
| What I measured on camera | 12 to 14 mph up steep gravel inclines on full throttle in the Class 2 setting, at about 200 lb | 42 miles in my range test, in winter, at about 200 lb |
| Tires | 20 x 4 in | 20 x 4 in Kenda fat (Fahrbike) |
| Weight | 84 lb (Segway) | 83 lb (Fahrbike) |
| Brakes | Hydraulic disc, 2-piston, 180 mm | Dual disc, front and rear |
| Max load | 330 lb total | 330 lb |
| AEB Score | 6.4 | 6.8 |
| Buy | Check Segway | Check Fahrbike |
What I said about the Segway Xyber Air
A moto-style e-bike that pulled me up steep gravel climbs on the throttle, with strong brakes and more fun than I expected. Not the pick for pavement-only riders.
I rode the Segway Xyber Air mostly on gravel, up two steep, bumpy climbs and back down, at about 200 lbs. On full throttle in Class 2 it held 12 to 14 mph on the steepest parts, and the hydraulic brakes with electronic braking gave me real control on loose rock going down. The 20 x 4 tires, front fork and plush but firm seat made gravel comfortable, and it was more fun to ride than I expected. It's a throttle-first, single-speed bike with a fixed seat, so it's not great for pedaling, and if you'll mostly ride on pavement there are better choices. I haven't done a range test or a long-term test yet.
My video review
Liked
- Plenty of pull on steep gravel climbs on full throttle with me at about 200 lbs
- Strong, controllable hydraulic brakes plus smooth electronic braking
- Comfortable on gravel thanks to 20 x 4 tires, the 80 mm fork and a plush but firm seat
- Class 1, 2, 3 or Hybrid, selectable on the display
- Briefcase-style removable battery with lockable storage underneath
- AirLock auto-lock and Apple Find My
Didn't
- The fixed seat makes pedaling uncomfortable
- Single speed, so the motor does the work
- Not the best value if you'll only ride on pavement
- You need the app to start the bike
- Optional rear rack is rated for only 22 lbs
- Some smart features need a subscription after the first year (price not published)
What I said about the Fahrbike Roadster 73
If you want a budget moped-style e-bike, the Fahrbike Roadster 73 is the one I'd buy.
If you want a moped-style e-bike under $2,000, the Fahrbike Roadster 73 is the one I'd buy. I tested it for several weeks. It was listed at $1,399 when I reviewed it, and I think that's a steal for what you get: fat tires, oversized dual front and rear shocks, a Samsung battery that went 42 miles for me in winter, an integrated headlight and tail light, and a plush moped seat. Know what you're buying: it's a throttle bike. At about 6'1" and 200 lb, pedaling it was almost comical, because the seat doesn't go high enough for my legs. I also found two flaws on my bike: the chain rubs the rear tire in the two highest gears, and the tail light wiring arrived frayed.
My video review, published

Liked
- Super smooth, almost surfboard-like ride from the oversized shocks
- Plush, firm moped seat that's comfortable for long rides
- Very comfortable grips and higher handlebars
- 42 miles of range in winter at about 200 lb
- Easy throttle starts from a stop
- Dual disc brakes with plenty of stopping power
- Integrated halo LED headlight, visible even in daylight, and an integrated tail light
- Easy shifter you can work with your index finger and thumb
- Rear rack
- $1,399 when I reviewed it
Didn't
- Uncomfortable to pedal for tall riders; the seat height isn't adjustable enough
- Chain rubs the rear tire in the two highest gears on my bike
- Frayed tail light wiring on the bike I received
Who should skip each one
- Segway Xyber Air: skip it if this is a dealbreaker: The fixed seat makes pedaling uncomfortable
- Fahrbike Roadster 73: skip it if this is a dealbreaker: Uncomfortable to pedal for tall riders; the seat height isn't adjustable enough
More: all comparisons · buying guides · how I test
