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Axle question- Thread pitch(6 posts)

Axle question- Thread pitchCima Coppi
Mar 14, 2003 6:41 AM
Hello all,

I purchased a cheap Sun/Ringle rear hub on E-Bay for my winter bike. I made the silly assumption that the axle width was 130mm, but it's 135mm. I need to get a 130mm axle, but I also need one that has the correct thread pitch for the cones and nuts on the current axle. Are most of the Japanese axles identical in thread size and pitch?

As always, your responses are greatly appreciated.

CC
re: Axle question- Thread pitchcurlybike
Mar 14, 2003 7:00 AM
Can't you change the spacers(remove 5mm) on the nondrive side and saw off the axle? I have no visual picture of the hub that you are working on, but that works on most hubs. You should leave a cone or nut on the axle to help deburr the end after you cut it off. Sometimes a grinder is a better tool. Avoid overheating the axle. If this is a complete wheel, you will need to redish(center)the rim over the new hub center. To answer your question, most rear hubs produced in the Orient have 10 mm x 1mm pitch hub axles.
Here's what I figured...Cima Coppi
Mar 14, 2003 7:34 AM
Axles are in expensive enough to simply purchase a new one that is the size I need. I also don't have the shop set up to accurately cut down the current axle, and keep the cut straight.

Thanks for the advise though.

CC
re: Axle question- Thread pitchMR_GRUMPY
Mar 14, 2003 7:07 AM
Yes, almost all Japanese and American threads are the same. Campy axels have a different pitch.
When you buy the correct axel, just bring one of the nuts to test the pitch. A good shop should carry them (Wheels Manufacturing)..
Ps. I think that a 130mm axel is really 137 or 141mm long, but I'm not positive.
That's right, I forgot...Cima Coppi
Mar 14, 2003 7:16 AM
that 130mm is the spacing between the dropouts, not the actual length of the axle.

Thanks all.

CC
re: Axle question- Thread pitchcurlybike
Mar 14, 2003 7:54 PM
The standard thread is a metric pitch of 1mm or 25.4 tpi Campy for some unknown reason uses 26 tpi.