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Fahrbike Roadster 73 vs Ailife X20B
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
- Motor: 1000 W on the Ailife X20B vs 750 W on the Fahrbike Roadster 73.
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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.
Ailife X20B
6.5 AEB Scorehow it worksA punchy moped-style throttle commuter with signals and dual suspension; cramped to pedal for tall riders.
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Side by side
 |  | |
|---|---|---|
| Price | $899 | Not listed |
| Type | Moped-style | Moped-style |
| Motor | 750 W | 1000 W |
| Battery | 720 Wh | 720 Wh |
| Rated range | 60 mi | Not listed |
| What I measured on camera | 42 miles in my range test, in winter, at about 200 lb | No on-camera numbers |
| Tires | 20 x 4 in Kenda fat (Fahrbike) | Not listed |
| Weight | 83 lb (Fahrbike) | Not listed |
| Brakes | Dual disc, front and rear | Hydraulic disc (Urban Drift) |
| Max load | 330 lb | Not listed |
| AEB Score | 6.8 | 6.5 |
| Buy | Check Fahrbike | See current Urban Drift bikes (not an affiliate link) |
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
What I said about the Ailife X20B
A punchy moped-style throttle commuter with signals and dual suspension; cramped to pedal for tall riders.
Buy the Ailife X20B if you want a moped-style bike that you'll mostly ride on throttle. It has huge punch on hills, and I said it's best used as a throttle commuter. It comes with turn signals, a horn, a high/low headlight, fenders and dual suspension (0:29 to 0:34, 1:13 to 1:22, 3:56 to 4:12). I rode it for several weeks. Skip it if you pedal a lot and you're tall. At 6'1" and 200 lb, the seat sat too close to the pedals for me (0:43 to 0:51, 4:12 to 4:26). Also skip it if finish quality matters. The welds and front cables were messy.
My video review, published
Liked
- Huge hill punch on throttle
- Turn signals, horn, high/low headlight
- Dual suspension and fenders
Didn't
- Cramped pedaling for tall riders
- Messy welds and cables
- Display stuck in km
- Brake levers swapped from factory
Who should skip each one
- Fahrbike Roadster 73: skip it if this is a dealbreaker: Uncomfortable to pedal for tall riders; the seat height isn't adjustable enough
- Ailife X20B: skip it if this is a dealbreaker: Cramped pedaling for tall riders
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