Gotrax Z4 Pro vs Heybike Ranger S 2.0
Gotrax Z4 Pro wins on price, full charge; Heybike Ranger S 2.0 wins on everyday range (180 lb), throttle range on hills, range with a 280 lb rider, steepest hill at 8 mph, battery. For a 180 lb rider in everyday riding, the Z4 Pro goes about 29 miles and the Ranger S 2.0 about 41 miles per charge.
Where they differ
A gap under 5% is called a tie: it's inside the model's uncertainty.
| Measure | Z4 Pro | Ranger S 2.0 | Edge |
|---|---|---|---|
| Everyday range (180 lb)16 mph, relaxed pedaling, rolling hills | 29 mi | 41 mi | Ranger S 2.0 |
| Throttle range on hills15 mph, no pedaling, ±4% hills | 19 mi | 28 mi | Ranger S 2.0 |
| Range with a 280 lb riderEveryday scenario | 23 mi | 33 mi | Ranger S 2.0 |
| Steepest hill at 8 mph200 lb rider, throttle only | 11% | 21% | Ranger S 2.0 |
| BatteryRated capacity | 480 Wh | 692 Wh | Ranger S 2.0 |
| PriceBrand store, today | $899 | $999 | Z4 Pro |
| WeightWith battery | 66 lb | — | Tie |
| Max loadRider + cargo | 265 lb | — | Tie |
| Full chargeStock charger, empty to full | 4.7 h | 6.4 h | Z4 Pro |
| Top assisted speedBrand spec | 28 mph | 28 mph | Tie |
Range at every rider weight
| Rider | Easy 12 mph | Everyday 16 mph | Fast 20 mph | Throttle, hills |
|---|---|---|---|---|
| 150 lb | 46 vs 67 mi | 30 vs 44 mi | 21 vs 31 mi | 21 vs 31 mi |
| 200 lb | 41 vs 58 mi | 28 vs 40 mi | 20 vs 29 mi | 18 vs 26 mi |
| 250 lb | 36 vs 52 mi | 25 vs 35 mi | 19 vs 27 mi | 16 vs 23 mi |
| 300 lb | 32 vs 47 mi | 22 vs 32 mi | 18 vs 26 mi | 14 vs 21 mi |
Z4 Pro first, then Ranger S 2.0. 70°F, pavement, new battery. Scenarios: Easy cruise: 12 mph, relaxed pedaling, flat; Everyday: 16 mph, relaxed pedaling, rolling hills; Fast commute: 20 mph, relaxed pedaling, rolling hills; Throttle only: 15 mph, no pedaling, hilly.