1. What is the Electric Bike Speed Equation?

The Electric Bike Speed Equation estimates the speed of an electric bicycle based on motor power, total weight, and a conversion factor. It provides a theoretical maximum speed under ideal conditions.

2. How Does the Calculator Work?

The calculator uses the Electric Bike Speed equation:

Where:

• \( Power \) — Motor power in watts
• \( Weight \) — Total weight (bike + rider + cargo) in kg
• \( Factor \) — Conversion factor (typically 0.15-0.25)

Explanation: The equation shows that speed increases with more power and decreases with more weight, with the factor accounting for efficiency and other variables.

3. Importance of Speed Calculation

Details: Understanding potential speed helps in selecting appropriate e-bike components, complying with local speed regulations, and setting realistic expectations for performance.

4. Using the Calculator

Tips: Enter motor power in watts, total weight in kg, and an appropriate factor (start with 0.2). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical factor value?
A: Most e-bikes use factors between 0.15 and 0.25, with 0.2 being a good starting point for average conditions.

Q2: Why doesn't my actual speed match the calculation?
A: Real-world speed is affected by terrain, wind, tire pressure, battery charge, and riding position.

Q3: How accurate is this calculation?
A: It provides a theoretical maximum. Actual speed is typically 10-20% lower due to various resistances.

Q4: Does this account for legal speed limits?
A: No. Many regions limit e-bike speeds to 25-32 km/h (15-20 mph) for street legal operation.

Q5: Should I include my body weight?
A: Yes, total weight should include rider, bike, and any cargo for accurate results.