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.

1/8" One-Speed Freewheels

1/8" One-Speed freewheels on this page: DNP 16-tooth | Leader 16-tooth | Main Drive 16-tooth | DNP 18-tooth | Leader 18-tooth

What we do when there is no way to use a freewheel tool to remove a freewheel.

Note: 1/8" is the width of true track chains and sprockets. A 3/32" or narrower derailleur chain will not work on a 1/8" sprocket.

Here's an ad for a one-speed freewheel remover from a long time ago in a place far away...

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DNP 16-tooth 1/8" one-speed freewheel. Used, $10.00

Indeed, it is a DNP freewheel.

And here's the other side. This is the side that should go out so that you can remove the freewheel for service.

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Leader 16-tooth 1/8" one-speed freewheel. Used, $10.00

Side one

And the flip side

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Main Drive 16-tooth 1/8" one-speed freewheel. Used, $10.00

It uses the standard 4-prong remover

The back side

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DNP 18-tooth 1/8" one-speed Cold-Forged freewheel. Used, $15.00

Cro-Moly steel

Side one

And the flip side

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Leader 18-tooth 1/8" one-speed freewheel. Used, $10.00

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For fun, here is a picture of what we have to do when the freewheel maker doesn't install notches or splines in the freewheel for a freewheel tool:

We have to take it apart to get the body off the hub, then re-assemble it.