Super73 S2 SE
Class 2
Legal class
20 mph
Top speed
720 Wh
Battery
45 mi
Claimed range
71 lb
Weight
325 lb
Max load
The S2 with 750W, 720Wh and an adjustable fork: 35-45 miles at 71 lb, and a torque sensor rather than the ZX SE cadence sensor at a $150 premium. 7-8 hours to charge is the longest wait in the range, which is what a 720Wh pack on a standard charger costs you. Brakes are Tektro, 2 piston, hydraulic; suspension is front adjustable; seat height 31 inches; charge time 7-8 hours; horn not fitted. SENSOR SOURCE: Super73 publish the sensor type on no product page. Their own guide at https://eu.super73.com/blogs/guides/cadence-and-torque-sensor says "The SUPER73 Z-MIAMI, ZG, and ZX are equipped with a cadence sensor. The rest of the SUPER73 models have a torque sensors." Super73 describe the pack as "UL2271 Compliant", which is a battery claim and a weaker word than certified; there is no UL 2849 system claim.
Full specification
| Headline | |
| Price | $3,145 |
|---|---|
| Category | Fat tire & moto |
| Price per Wh | $4.37 per Wh |
| Model year | 2026 |
| Motor | |
| Motor power | 750 W |
| Drive | Rear hub |
| Motor make | Super73 |
| Sensor | Torque |
| Battery & range | |
| Battery | 720 Wh |
| Voltage | 48V |
| Capacity | 15 Ah |
| Removable battery | Yes |
| Range (claim) | 45 mi |
| Range as stated | 35 to 45 miles at 20 mph on throttle only |
| Est. real range | 36 mi |
| Estimate assumes | 20 Wh per mile |
| Weight & capacity | |
| Weight | 71 lb |
| Max load | 325 lb |
| Class & speed | |
| Ships as | Class 2: throttle, assist to 20 mph |
| Unlocks to | Class 2 |
| Class | Class 2 |
| Throttle | Yes |
| Top assisted speed | 20 mph |
| Build | |
| Gears | Single speed |
| Drivetrain | Single speed |
| Brakes | Hydraulic disc |
| Suspension | Hardtail (front only) |
| Rear travel | None |
| Front suspension | Yes |
| Tires | 20 x 4.5 front, 20 x 5.0 rear |
| Frame | Aluminium |
| Step-through option | No |
| Included | |
| Lights | Yes |
| Safety | UL 2271 |
| Safety certification | UL 2271: battery only |
| As the maker states it | Batteries described as UL 2271 compliant (compliant, not certified) |
Safety certification: UL 2271: battery only. Super73 states: “Batteries described as UL 2271 compliant (compliant, not certified)” (source). That is the manufacturer’s own claim, not something we verified, you can check a specific model in UL’s Product iQ database. Why this matters.
Specs transcribed from super73.com on 09/22/2026. Fields the manufacturer does not publish are shown as “—” rather than estimated. Manufacturers revise specs without notice: confirm before buying.
Compared with
Head to head against the fat tire & moto bikes closest to it on price.