11/20/2025: Dear Friends, I am currently in chemotherapy and unable to promptly answer emails or ship orders. I will do my best to take care of your needs, but hope you can be patient. Thank you all for your support.

3/32" One-Speed Freewheels

3/32" One-Speed freewheels on this page: ACS Crossfire 16-tooth | Main Drive 16-tooth | Shimano 18-tooth | ACS Crossfire 20-tooth

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ACS Crossfire 16-tooth 3/32" Cro-Moly One-Speed Freewheel. Used, $20.00/each

• ACS Crossfire threaded freewheels are made with a focus on durability.
• Durable cold forged design
• Three-pawl design provides engagement every 12 degrees (30 steps total)
• Removal spline pattern allows for better frame clearance
• Fits 3/32"" or 1/8"" chain sizes

Top side

The back of the freewheel.

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Main Drive 16-tooth 3/32" One-Speed freewheel. Used, $10.00

Front

And the back

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Shimano SF-MX30 18-tooth 3/32" one-speed freeewheel. Used, $20.00/each

Front

Back

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ACS Crossfire 20-tooth 3/32" Cro-Moly One-Speed Freewheel. Lightly used, $20.00/each

• ACS Crossfire threaded freewheels are made with a focus on durability.
• Durable cold forged design
• Three-pawl design provides engagement every 12 degrees (30 steps total)
• Removal spline pattern allows for better frame clearance
• Fits 3/32"" or 1/8"" chain sizes

Top side

And here's the back of the freewheel.