What's the relevance of a pitted hub cone/cup?

[Woz]

Re: Re:

As I've got way too much time on my hands, I thought I'd measure the amount of movement of the cones when the quick release is done up.

My understanding is that it's the slight play in the threads that causes this to happen.



Using the setup in the photo, I measured 0.07 mm difference between the inside of the cones when the skewer is done up.

The thread is 26tpi, so this equates to about 1/14th of a turn.

Stella stuff right there!

You went more precise than Keith Bontrager who, if memory serves me right, said for Campag about a quarter of a turn.

 

[tpjm191]

just saw same tip mentioned, however a ring spanner is probably easier than having the wheel hanging from one frame/fork end!

That's a brilliant idea, I will try that next time I need to service a wheel.

just to be clear i saw it in a book or somewhere.

Have a mental image of a pic in a book.

Just been through my Zinn, Park, Andrews, Sloane and even old Snowling books (and some others) and couldn't see reference to it!

someone must know where this tip comes from! - it is annoying me now

Checked again, it was Calvin Jones (of Park tools), Big Blue Book of bicycle repair.

I did notice same method is mentioned on the Sheldon Brown site.

This method just takes out all the guess work.