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Gotrax G4 vs NIU KQi 100F
The Gotrax G4 has the longer estimated range — 15 miles against 9.7 — because it carries 374 Wh to the NIU KQi 100F’s 243. The Gotrax G4 is the lighter of the two at 37 lb, which puts it in the curb lift class. Everything else is below.
| Estimated range | 15 mi | 9.7 mi |
|---|---|---|
| Claimed range | 25 mi (1.7x the estimate) | 18 mi (1.9x the estimate) |
| Top speed | 20 mph | 17.4 mph |
| Motor | Single motor, 500 W | Single motor, 300 W (600 W peak) |
| Battery | 374 Wh at 36 V | 243 Wh at 48 V |
| Wh per dollar | 0.83 Wh/$ | 0.54 Wh/$ |
| Wh per pound | 10 Wh/lb | 6 Wh/lb |
| Weight | 37 lb — curb lift | 38.8 lb — curb lift |
| Max rider weight | 264 lb | 265 lb |
| Rated grade | — | 15% |
| Tires | 10" pneumatic | 9.5" pneumatic |
| Suspension | Front | Front |
| Brakes | Rear mechanical disc with regen | Front drum with regenerative rear |
| IP rating | — | IPX5 |
| Charge time | 5 h | 5.5 h |
| Folded size | Folds | Folds |
| Deck width | — | 5.1 in |
| Lights | Headlight, taillight | Headlight, taillight, turn signals |
| App | No | Yes |
| Cruise control | Yes | Yes |
| Approx. price | ~$449 | ~$449 |
| Released | 2022 | — |
Gotrax G4: the case against
- One owner's battery capacity collapsed inside a year, with a $200 replacement quoted
- A theft-mode lockout that one owner could not clear
- No app, and suspension at the front only
- Gotrax's customer service is the most frequently criticised in this catalog
NIU KQi 100F: the case against
- 243 Wh gives about 18 miles claimed, and the 100P with the same pack tested at 11.4
- Pneumatic tires with tubes; a puncture means pulling the wheel
- Front drum with regen only; no mechanical rear brake
- 17.4 mph is 2.6 mph below the 200-series
- $449 is $120 below the KQi 200F, which has 122 Wh more