Head to head · Updated Oct 11, 2026
Gotrax R1 vs Gotrax S4
Gotrax's two folding e-bikes, both sold by Amazon and UL 2849 certified.
Gotrax
Gotrax R1 20" Folding Electric Bike
- Top speed
- 20 mph
- Battery
- 374 Wh
- Range claim
- 40 mi
- Weight
- 45 lb
$500–$700See today's price on Amazon
Gotrax
Gotrax S4 16" Folding Electric Bike
- Top speed
- 15.5 mph
- Battery
- 281 Wh
- Range claim
- 28 mi
- Weight
- —
$500–$700See today's price on Amazon
Quick verdict
Which one should you buy?
The R1 is the better bike: bigger battery, 20 in wheels, 20 mph and only 45 lb. The S4 is for very small spaces and short hops.
Editor scores
How they stack up
- Gotrax R1
- Gotrax S4
Key differences
By the numbers
- Gotrax R1 has the bigger battery: 374 Wh vs 281 Wh
- Gotrax R1 is faster (claimed): 20 mph vs 15.5 mph
Full specs
Spec by spec
| Spec | Gotrax R1 | Gotrax S4 |
|---|---|---|
| Motor & speed | ||
| Motor, rated | 350 W | 350 W |
| Motor, peak (claimed) | 500 W | 500 W |
| Top speed (claimed) | 20 mph | 15.5 mph |
| E-bike class | Class 2 | Class 2 |
| Throttle | Yes | Yes |
| Battery & range | ||
| Battery | 374 Wh | 281 Wh |
| Voltage | 48 V | — |
| Range, best case (claimed) | 40 mi | 28 mi |
| Charge time | 5.5 h | 5.5 h |
| Removable battery | Yes | Yes |
| Ride & comfort | ||
| Wheel size | 20 in | 16 in |
| Tire width | 2.6 in | — |
| Suspension | None (rigid) | Front fork |
| Brakes | Dual mechanical disc | Dual disc |
| Gears | 5 | 1 |
| Size & fit | ||
| Bike weight | 45 lb | — |
| Max load (claimed) | 264 lb | — |
| Frame | Folding, aluminum | Folding, steel |
| Folds | Yes | Yes |
| Rider height | 5'3" and up | — |
| Safety & support | ||
| UL 2849 certified | Yes | Yes |
| Lights | Front & rear | Front & rear |
| Warranty | 180-day limited + 365-day parts support | 1 year |
| Editor scores (0–10) | ||
| Motor & speed | 4 | 3 |
| Battery | 2 | 0 |
| Ride comfort | 4 | 4 |
| Portability | 9 | 8 |
| Brakes & safety | 8 | 7 |
| Build & support | 7 | 6 |
| Value | 7 | 5 |
| Overall editor score | 5.7 | 4.5 |
“Best” marks the stronger value in each row. A dash means the value isn’t published. Gotrax R1 wins 4 spec rows, Gotrax S4 wins 0. Scores follow our rating rules.
Pros & cons
What owners and specs say
Gotrax R1
- Lightest bike here (45 lb)
- Folds small
- UL 2849, Class 2
- Sold by Amazon
- Small 374 Wh battery
- No suspension
- 180-day warranty
Gotrax S4
- Very compact
- UL 2849 certified
- Sold by Amazon
- Front suspension
- 15.5 mph top speed
- Small battery
- Single speed