1. What is RPM at Wheel?

RPM at wheel refers to the rotational speed of the go-kart's wheels, calculated from the engine RPM and gear ratio. This helps in understanding the vehicle's performance characteristics.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• Engine RPM — Rotational speed of the engine (revolutions per minute)
• Ratio — Gear ratio (dimensionless)

Explanation: The gear ratio represents how many times the engine rotates for each rotation of the wheel. Dividing engine RPM by this ratio gives the wheel RPM.

3. Importance of RPM Calculation

Details: Calculating wheel RPM helps in determining the go-kart's speed, acceleration characteristics, and optimal gear ratios for different track conditions.

4. Using the Calculator

Tips: Enter engine RPM (typically between 2000-8000 for most go-karts) and gear ratio (typically between 5:1 to 12:1). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical gear ratio for go-karts?
A: Most go-karts use gear ratios between 5:1 to 12:1, depending on engine power and track requirements.

Q2: How does wheel RPM relate to speed?
A: Wheel RPM multiplied by wheel circumference and appropriate unit conversions gives the vehicle's speed.

Q3: What's the difference between engine RPM and wheel RPM?
A: Engine RPM is the rotational speed of the engine crankshaft, while wheel RPM is the rotational speed of the wheels after gear reduction.

Q4: Why is gear ratio important?
A: Gear ratio determines the trade-off between acceleration and top speed. Lower ratios provide better acceleration, higher ratios provide higher top speed.

Q5: How can I measure my actual gear ratio?
A: Count the teeth on the clutch/drive sprocket and axle/driven sprocket, then divide driven by drive sprocket teeth.