I need to turn a 24" flywheel at 500 RPM with a bicycle

AI Thread Summary
To turn a 24", 100 lb flywheel at 500 RPM using a bicycle, a gear ratio of 0.14:1 is required if the pedaling rate is 70 RPM. This indicates a need for a significant gear ratio, suggesting the use of compound gear ratios may be beneficial. The discussion emphasizes the importance of understanding gear ratios and their calculations for effective design. Participants also inquire about the nature of the project, whether it's homework or a practical application. Overall, the conversation focuses on the technical requirements for achieving the desired flywheel speed.
Tim1876
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I am trying to figure out the gear ratio's needed to turn a 24", 100 lb flywheel at 500 RM with a bicycle. I can not find a formula to calculate the size gears I will need. Can anyone point me in the right direction?
 
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Welcome to Pf! Do you know the formula for gear ratio? Is this homework? An actual design project? Where have you looked/what have you tried?
 
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