One inch threaded xc pro headset please if anyone has one available?
Cheers,
BB
Cheers,
BB
XC Pro headset please...
- Thread starter BoyBurning
- Start date
Cheers Doc, have asked the question!
BB.
BB.
one-eyed_jim
Old School Grand Master
I've got one. Pretty sure it's JIS, but I can find it and measure. Are you after JIS or ISO?
one-eyed_jim":3rlrcufg said:
I thought JIS only applied to bottom brackets?
It's to fit Specialized threaded forks, so would imagine it's ISO, but the forks were probably made in Japan, so it could be either...!
What's the easiest way for me to find out? Do you know the thread counts?
one-eyed_jim
Old School Grand Master
Unfortunately not. JIS headsets are pretty common on older Japanese-made bikes. The threads are the same as ISO, but the press-fit dimensions (especially the crown race seat) are different.BoyBurning":57ye44ha said:
My Japanese-made '92 Stumpjumper Comp was JIS. I don't know about the later bikes with 1" headsets, but I imagine anything Specialized made in '92 or before is going to be JIS.
The threads are all 24tpi. The simplest dimension to check is the crown race seat - 27.0mm for JIS, 26.4mm for ISO:
http://www.sheldonbrown.com/headsets.html#size
A JIS frame and fork can be milled quite cheaply to take an ISO headset.
one-eyed_jim
Old School Grand Master
As far as I know there was only ever one standard for 1 1/8":DoctorRad":2ynnwx89 said:
http://www.sheldonbrown.com/headsets.html#size
though of course that comes in threaded and threadless flavours.
