Three practical calculators from the Cargo E-Bike Mastery Guide. Estimate real-world range, calculate stopping distance with a loaded bike, and see whether replacing a second car makes financial sense.
A mid-drive motor works with the bike's gearing system, multiplying torque through the cassette. A rear hub motor is simpler and cheaper, but struggles on sustained steep climbs and can overheat on 15%+ grades.
| Feature | Mid-drive | Rear hub |
|---|---|---|
| Torque output | 85–100+ Nm | 50–80 Nm |
| Hill climbing | Excellent — uses bike gears | Good up to ~12% |
| Ride feel | Natural (torque sensor) | "Pushed" feeling (cadence sensor) |
| Drivetrain wear | Higher chain/belt wear | Easier on drivetrain |
| Ideal use | Hilly cities (SF, Seattle) | Flat cities, budget builds |
In 2026, dual-battery systems have become the standard on premium cargo bikes. A 500 Wh single battery provides roughly 30 km under load; a 1000 Wh+ dual system delivers all-day freedom, even on hilly terrain with two children.
With a total system weight — bike + rider + two children — often exceeding 227 kg (500 lb), mechanical cable brakes are wholly inadequate. Test your braking parameters below to understand real-world stopping dynamics.
| Component | Minimum | Recommended |
|---|---|---|
| Calipers | 2-piston | 4-piston (Magura MT5 or Tektro Cargo) |
| Rotors | 180 mm | 203 mm front, 180 mm rear |
| Pad compound | Organic | Metallic (sustained descents) |
| Rotor replacement | Below 1.5 mm | Proactively every season |
Essential for 360° recognition. Minimum 100 lumens front, 50 lumens rear.
Garmin Varia or integrated systems alert you to approaching vehicles from behind — critical when carrying children.
Passive tracking via Bosch Smart System or a concealed tracker. A $6,000+ bike is a target.
Bosch and Shimano both offer app-based motor lock. Even without a physical lock, the bike goes nowhere.
Adjust the sliders below to calculate your personal financial savings and real-time break-even month when substituting your car with a cargo e-bike.