1. What is Single Speed Gear Ratio?

The single speed gear ratio is the ratio between the number of teeth on the chainring (front gear) and the freewheel (rear gear). It determines how many times the rear wheel turns for each pedal revolution.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Chainring \) — Number of teeth on the front gear
• \( Freewheel \) — Number of teeth on the rear gear

Explanation: A higher ratio means more distance per pedal stroke but requires more effort, while a lower ratio makes pedaling easier but covers less distance per stroke.

3. Importance of Gear Ratio

Details: The gear ratio affects your pedaling cadence and the force needed to turn the pedals. Choosing the right ratio depends on your fitness level, terrain, and riding style.

4. Using the Calculator

Tips: Enter the number of teeth on your chainring and freewheel. Both values must be positive integers (typically between 30-50 for chainring and 10-20 for freewheel).

5. Frequently Asked Questions (FAQ)

Q1: What's a typical single speed gear ratio?
A: Common ratios range from 2.0 to 3.0. Urban riders often prefer 2.2-2.6, while track cyclists may use higher ratios.

Q2: How does ratio affect riding?
A: Higher ratios are better for speed on flat terrain, while lower ratios help with hills and acceleration.

Q3: Can I change my gear ratio?
A: Yes, by changing either the chainring or freewheel to one with a different number of teeth.

Q4: What's gear inches?
A: Gear inches is another way to express gearing that factors in wheel size (ratio × wheel diameter in inches).

Q5: What ratio is best for beginners?
A: Beginners might start with a ratio around 2.2-2.5 (e.g., 44t chainring and 18t freewheel).