1. What is BMX Gear Ratio?

The BMX gear ratio compares the number of teeth on the front sprocket to the rear cog. It determines how many times the rear wheel turns for each pedal revolution, affecting speed and pedaling effort.

2. How Does the Calculator Work?

The calculator uses the simple gear ratio formula:

Where:

• Sprocket Teeth — Number of teeth on front chainring
• Cog Teeth — Number of teeth on rear cog

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

3. Importance of Gear Ratio

Details: Choosing the right gear ratio is crucial for BMX riding style - street, park, or racing. It affects acceleration, top speed, and the ability to perform tricks.

4. Using the Calculator

Tips: Enter the number of teeth on your front sprocket and rear cog. Common BMX setups range from 25/9 to 36/13 combinations.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical BMX gear ratio?
A: Most BMX bikes use ratios between 2.5:1 and 3.0:1. Street riders often prefer lower ratios (around 2.5), while racers use higher ratios (up to 3.0).

Q2: How does gear ratio affect riding?
A: Higher ratios give more speed per pedal stroke but require more leg strength. Lower ratios make tricks easier but limit top speed.

Q3: What's the advantage of micro gearing?
A: Micro gearing (small sprocket and cog combinations) reduces weight and improves ground clearance for tricks.

Q4: Should I change my gear ratio for different riding styles?
A: Yes - street riders often prefer 25/9 (2.78), park riders might use 28/10 (2.8), and racers typically use higher ratios like 36/13 (2.77).

Q5: How does wheel size affect gearing?
A: Larger wheels (like 29" BMX) effectively create higher gearing, while smaller wheels (like 18" for younger riders) create lower gearing.