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 Post subject: 1" threaded JIS headset
PostPosted: Thu Jul 18, 2013 9:31 am 
Devout Dirtbag

Joined: Fri Jun 14, 2013 9:18 pm
Posts: 116
Any kind considered! Used is fine if condition is good

Paul


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PostPosted: Thu Jul 18, 2013 12:57 pm 
Retro Guru
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Joined: Sat Apr 05, 2008 10:12 pm
Posts: 2938
Location: Leeuwarden, Nederland
I have to check but i think i have a nos stx headset. Have to check of IT is a 1".

greetz Paul


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PostPosted: Thu Jul 18, 2013 3:46 pm 
Devout Dirtbag

Joined: Fri Jun 14, 2013 9:18 pm
Posts: 116
Thanks! Please do! It must be JIS spec though. 27mm ID crown race and 30mm OD cups.

Paul


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PostPosted: Mon Sep 23, 2013 3:10 pm 
Devout Dirtbag

Joined: Fri Jun 14, 2013 9:18 pm
Posts: 116
Actually another two as I have two frames I would like to build up. Both are 1990 so 1" JIS is needed.

Urgent requirement for 1 as I'm doing a build for the wife.


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PostPosted: Mon Sep 23, 2013 4:07 pm 
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Joined: Sat Apr 05, 2008 10:12 pm
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Location: Leeuwarden, Nederland
I still don't understand what a jis headset is/means. What is the difference with a non jis headset? My stx headset had the same use as a deore dx headset, so i think It Will fit.


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PostPosted: Mon Sep 23, 2013 7:34 pm 
Devout Dirtbag

Joined: Fri Jun 14, 2013 9:18 pm
Posts: 116
A JIS 1" headset is dimensionally different from an ISO 1" headset. ISO is much more common. JIS is the Japanese standard, ISO is international. Early Marins were made in Taiwan presumably to the more local specs and they got JIS headtubes.

A JIS headset has 30.0 mm OD on the cups (ISO has 30.2mm) and 27.0mm on the crown race ID (ISO has 26.4mm). It is apparently possible (although fiendishly difficult in my experience) to force ISO cups into a JIS headtube but there's no way an ISO crown race is going on some JIS forks without them being turned down to suit on a lathe.

If your STX headset is a JIS spec unit I'd be happy to buy it but unless the packaging specifies or the parts have the sizes stamped on them, I would always assume it's an ISO.


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PostPosted: Tue Sep 24, 2013 11:55 pm 
Devout Dirtbag

Joined: Fri Jun 14, 2013 9:18 pm
Posts: 116
Bumping myself.

But also a question. Someone alerted me to this:

http://www.spacycles.co.uk/products.php ... 2b32s115p0

It's a road headset but it's a reasonably nice one. The page says Ultegra but the pic seems to say it's Shimano 600. Are these roughly equivalent?

Also, is putting a road headset on an MTB safe? I would imagine it would be fine but maybe shimano anticipated a lighter weight/lower strength requirement to road headsets which makes it a bit iffy, esp for off-road use. Then again, maybe they're the same as the MTB units in all but label.

Can someone share some knowledge?

Cheers


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PostPosted: Wed Sep 25, 2013 10:38 am 
BoTM Winner / Gold Trader / Rider
BoTM Winner / Gold Trader / Rider
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Joined: Tue Oct 14, 2008 7:37 pm
Posts: 5716
Location: Groningen, Netherlands
Take a look at this one!!

http://www.mountainbike-kult.de/

go to Steuersätze and look for the Ritchey Logic 1" JIS steuersatz!

If you are interested contact the seller; Andre Velte. I think he is willing to ship it anywhere!


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PostPosted: Thu Sep 26, 2013 11:51 pm 
Devout Dirtbag

Joined: Fri Jun 14, 2013 9:18 pm
Posts: 116
Sent a mail to Andre via his website, no reply as yet. Does he have a profile on here?

Anyway, still searching..... Any opinions on the shimano 600?


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PostPosted: Fri Sep 27, 2013 12:12 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 07, 2010 4:00 pm
Posts: 959
Location: Hunting down the "foxes" of lincolnshire
Get in touch with this guy - he had some alloy sealed bearing ones listed as both iso and jis sizes and has this in stock now:

http://www.ebay.co.uk/itm/JIS-1-Threade ... 3f2877a0ea

And :)


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