Vintage CCM | forum | Chain wheel lock nut

Submitted by John on Wed, 06/16/2021 - 06:43.

Finding a CCM purpose built tool for removal of this nut is next to impossible. My solution was to buy a 1 and three eights socket and then grind down half of each side flat and locate an offset fixed wrench to fit the socket sides, then you can remove the shallow shoulder nut at this point.

Roadworthy

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Submitted by FreeLander on Wed, 06/16/2021 - 15:21.

That's a great solution John. I think I may have to do the same.

Thank you!

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Submitted by John on Wed, 06/16/2021 - 19:21.

Thanks FreeLander, but that's not my solution. It's one sent to me by Roadworthy.

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Submitted by jdwillia on Wed, 06/16/2021 - 21:29.

That is a very good solution.

I have used another trick for many years. Long ago I bought a long handled 1 3/8 wrench with a box end. When I tried it on the nut on the CCM crank, it would slip off. I then put the wrench on the nut, placed a number of large washers on the crank so that they would go up against the wrench, and tightened the Left Hand threaded cone to hold the washers and wrench securely. This kept the wrench from slipping off the sprocket nut, allowing for its removal with the wrench. Once the wrench starts turning the nut, the washers can all be removed, and the sprocket nut can also be completely removed. I must have removed at least 20 sprockets using this method.

John Williamson