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PostPosted: Sun Apr 08, 2018 12:36 pm 
BoTM | Gold | PoTM
BoTM | Gold | PoTM
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Joined: Thu Jan 19, 2012 2:20 pm
Posts: 9514
Location: Sunny Cornwall
You can easily tell the difference between a Catalyst and other frames; feel the top tube and down tube where they meet the head tube - if the tubes feel slightly ovalised then it’s a Catalyst, owing to the Prestige Concept tubing.


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PostPosted: Sun Apr 08, 2018 1:32 pm 
Dirt Disciple

Joined: Mon Apr 28, 2008 6:24 pm
Posts: 51
As the headtube is machined, I'm pretty sure it's 1 1/8. There is a big difference in diameter of chainstay between sovereign and Catalyst and from the picture I would still say it's a Sovereign.


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PostPosted: Sun Apr 08, 2018 4:26 pm 
Dirt Disciple

Joined: Sun Nov 05, 2017 5:53 pm
Posts: 23
Tubes connecting to the head-tube are not ovalized, both perfectly round when i measure with my calipers. So most likely a Sovereign as 'sovereign' points out... although i think he might be biased? =)


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PostPosted: Sun Apr 08, 2018 4:34 pm 
Retro Guru
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Joined: Wed Mar 19, 2014 8:46 pm
Posts: 768
Location: Wiltshire
Sounds like a Sovereign then - lovely! :-)


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PostPosted: Sun Apr 08, 2018 4:37 pm 
Dirt Disciple

Joined: Sun Nov 05, 2017 5:53 pm
Posts: 23
Yeah, now i know which decals to look for!

Starting the project of disassembly and inspection, hope not to find any nasty surprises =)

Thanks all for joining in the treasure hunt, i appreciate the expert help received!


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PostPosted: Sun Apr 08, 2018 4:49 pm 
Old School Grand Master
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Joined: Wed Feb 20, 2008 12:21 pm
Posts: 5939
Location: Lost in Translation
Lovely bike.

Have you checked the component date codes? Shimano parts have a two-letter date code which - assuming the group set is original - would give you a terminus post quem for assembly.

http://www.classicrendezvous.com/Japan/ ... _codes.htm

Easy to find on the backs of the cranks, for example.


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 Post subject: Re:
PostPosted: Mon Apr 09, 2018 1:46 pm 
Dirt Disciple

Joined: Fri Jun 10, 2016 4:11 pm
Posts: 42
I own B260. Confirmed by Paul as a August 1991 "ClimbMax".

Nice bike btw

Ray


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 Post subject: Re:
PostPosted: Mon Apr 09, 2018 2:04 pm 
Dirt Disciple

Joined: Sun Nov 05, 2017 5:53 pm
Posts: 23
Nice, does your climbMax have the 25.4mm or the 22.2mm quill stem? I'm still a little hesitant here what model my frame is :).


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 Post subject: Re:
PostPosted: Mon Apr 09, 2018 5:54 pm 
Dirt Disciple

Joined: Fri Jun 10, 2016 4:11 pm
Posts: 42
I think the smaller size, will measure later.

Ray


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PostPosted: Mon Apr 09, 2018 6:10 pm 
Dirt Disciple

Joined: Sun Nov 05, 2017 5:53 pm
Posts: 23
one-eyed_jim wrote:
Lovely bike.

Have you checked the component date codes? Shimano parts have a two-letter date code which - assuming the group set is original - would give you a terminus post quem for assembly.

http://www.classicrendezvous.com/Japan/ ... _codes.htm

Easy to find on the backs of the cranks, for example.


Checked the cranks, wheels, brakes and date codes are from 1990. The shifters are from 1989. I think everything is original and as it came from factory. Is there a point asking Paul B. to check for sure on the model? I don't want to bother him unnecessarily.


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