| Product Information | |
|---|---|
| Brand | Heybike |
| Name | Alpha ST |
| Price | $1499 |
| Release Year | 2025 |
| Category | Fat Tire |
| Motor | |
| Motor Type | Mid-Drive |
| Motor Position | Mid |
| Motor Brand | Mivice |
| Motor Model | X700 |
| Power (Nominal) | 500W |
| Torque | 105 Nm |
| Assist Levels | 5 |
| Sensor Type | Torque |
| Battery | |
| Battery Capacity | 680 Wh |
| Voltage | 48V |
| Amp-hours | 14.2 Ah |
| Battery Position | Downtube |
| Removable Battery | Yes |
| Max Range | 60 miles |
| Charge Time | 7 hrs |
| Speed & Class | |
| Class | Class 1, Class 2, Class 3 |
| Top Assist Speed | 28 MPH |
| Throttle Top Speed | 20 MPH |
| Throttle | Yes |
| Drivetrain | |
| Gears | 8 |
| Drive System | Chain |
| Derailleur | Shimano Altus |
| Cassette | 11-42T |
| Shifter | Trigger |
| Brakes | |
| Brake Type | Hydraulic Disc |
| Rotor Size (Front) | 180 mm |
| Rotor Size (Rear) | 180 mm |
| Frame & Geometry | |
| Frame Material | Aluminum |
| Frame Style | Step-Through |
| Sizes Available | One Size |
| Min Rider Height | 61" |
| Max Rider Height | 75" |
| Total Length | 70.8" |
| Min Handlebar Height | 46.5" |
| Max Handlebar Height | 46.5" |
| Min Seat Height | 33.1" |
| Max Seat Height | 38.2" |
| Wheelbase | 48.3" |
| Handlebar Width | 28.7" |
| Wheels & Tires | |
| Wheel Size | 26" |
| Tire Width | 4" |
| Tire Type | Fat |
| Puncture Protection | Yes |
| Suspension | |
| Front Suspension | None |
| Front Travel | 80 mm |
| Rear Suspension | None |
| Seatpost Suspension | No |
| Dimensions & Weight | |
| Weight | 71.6 lbs |
| Weight Limit | 400 lbs |
| Rack Capacity | 120 lbs |
| Components | |
| Display | LCD |
| Connectivity | Bluetooth |
| App Compatible | Yes |
| Integrated Features | |
| Integrated Lights | Yes |
| Fenders | Yes |
| Rear Rack | Yes |
| Front Rack | No |
| Kickstand | Yes |
| Chain Guard | No |
| Walk Assist | Yes |
| Alarm | No |
| USB Charging | No |
| Bottle Cage Mount | No |
| Safety & Compliance | |
| IP Rating | IPX4 |
| Certifications | UL 2849, UL 2271 |
| Advanced Comparison | |
| Price vs. Weight | 20.94 $/lb |
| Price vs. Power (Nominal) | 3 $/W |
| Price vs. Torque | 14.28 $/Nm |
| Price vs. Battery | 2.2 $/Wh |
| Price vs. Range | 24.98 $/mile |
| Price vs. Assist Speed | 53.54 $/MPH |
| Price vs. Weight Limit | 3.75 $/lb |
| Price vs. Gears | 187.38 $/gear |
| Range vs. Weight | 0.84 mile/lb |
| Battery vs. Weight | 9.5 Wh/lb |
| Power vs. Weight | 6.98 W/lb |
| Torque vs. Weight | 1.47 Nm/lb |
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