I'm away from my bike, so can't try and measure ... hopefully someone can help.

1) do the vbrake posts on the zion 853 frames unscrew out of the frame, or are they braized in?

2) if they unscrew out, what is the thread? Will one of these fit?

http://www.chainreactioncycles.com/M...x?ModelID=6233

I'm running disc's, and have never worried about pulling out the vbrake posts, but if I can replace them with some blanks that keep the threads protected incase I want to use them one day, then that'd be good.

Thanks