Gear Ratio Formula:
From: | To: |
Definition: This calculator determines the gear ratio for mini bikes based on the number of teeth on the driven and driver gears.
Purpose: It helps mini bike enthusiasts and mechanics optimize speed and torque by selecting the right gear combination.
The calculator uses the formula:
Where:
Explanation: Higher ratios provide more torque but lower top speed, while lower ratios increase speed but reduce torque.
Details: Proper gear ratio selection ensures optimal performance for your mini bike based on engine power, rider weight, and intended use (racing vs. climbing).
Tips: Count the teeth on both gears (or check manufacturer specs) and enter the numbers. All values must be positive integers.
Q1: What's a typical gear ratio for mini bikes?
A: Most mini bikes use ratios between 5:1 and 10:1, depending on engine size and intended use.
Q2: How does gear ratio affect performance?
A: Higher ratios increase torque (better for climbing) while lower ratios increase top speed.
Q3: Can I use this for other small engines?
A: Yes, the same calculation applies to go-karts, ATVs, and other small engine applications.
Q4: What if I get a decimal ratio?
A: Decimal ratios are normal (e.g., 6.5:1). The calculator shows the exact ratio for precise comparisons.
Q5: How do I change my gear ratio?
A: You'll need to replace either the driven or driver sprocket with one that has a different tooth count.