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82 specialized stumpjumper (and others): serial coding for frame builder?

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82 specialized stumpjumper (and others): serial coding for frame builder?

Old 09-13-13, 05:14 PM
  #1  
hujev
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82 specialized stumpjumper (and others): serial coding for frame builder?

Hi - I just bought a nice shape 1982 lugged stumpjumper for $45!

The guy pulled it out of a dumpster-my kind of recycling, and a justified profit even for a cheapskate like me! Missing front wheel, seat & post, and rear wheel sort of tacoed. Front mech is bent. Else in great shape, not too used. It's got the the tomasellis, the mafacs, the TA crank, the 'pillow block' stem, etc... Silver, and the 23" frame! This is my favorite of all the SJ versions (though I really like my 85 sport too!).

So now hunting down the parts from the usual sources (the seatpost -- it's a 26.0, right? Found a decent laprade on eb for $16 shipped; on the way! Suzue Hubs - on the way! Araya 7X Rims - ouch - watching...

Anyway, serial is M2K50511 ... which I managed to decode to November 1982 (derailleur codes both YC, btw), but for the life of me I can't find reference to who made the frames for these other than Toyo for those that start with T (I've also got the earlier 1982 tigged, Toyo, version; that was easier to decode...). Now I'm also wondering the makers of my 84 and 85 sport; alas in storage thousands of miles away in the UP ... hmm, do I have the serials written down somewhere...!

So who can point to (or make) the Rosetta Stone for these?

Attached is the lousy photo from the CL ad...

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rjl82SJ_600x450.jpg (50.6 KB, 267 views)
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Old 09-13-13, 11:51 PM
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Nice score. I have Araya 7X wheelsets, if you'd be interested.
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Old 09-14-13, 05:27 AM
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The crank set and the MAFAC cantis are worth far more than you paid. Great find.
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Old 09-14-13, 05:32 AM
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I seem to be in the only area of the USA where I can't find a 20" +/- Stumpjumper for bupkis!
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Old 09-14-13, 06:15 AM
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I love the fork on those:

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Old 09-14-13, 07:15 AM
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That's a nice bike!

I have an 85 Specialized Stumpjumper and an 81 Specialized Sequoia with serial numbers staring with 'M'.

From what I read from here and elsewhere, the 'M' stands for bikes made by Miyata for Specialized.

Some however also say the 'M' stands for Miki Seisakusho for the earlier models.
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Old 09-16-13, 01:09 AM
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Originally Posted by oddjob2 View Post
I seem to be in the only area of the USA where I can't find a 20" +/- Stumpjumper for bupkis!
Look at my signature. I have a 20" '85 Stumpy.
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Old 09-16-13, 04:13 AM
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Originally Posted by realestvin7 View Post
Look at my signature. I have a 20" '85 Stumpy.
Looking for a complete bike, no interest in chasing components. Plus I suggested below FMV pricing.
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Old 09-16-13, 07:39 AM
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Originally Posted by oddjob2 View Post
Looking for a complete bike, no interest in chasing components. Plus I suggested below FMV pricing.
I have all the parts to build it except for the wheelset. Definitely not bupkis priced, though. Lol.
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Old 09-17-13, 11:35 AM
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anybody got some 7x rims or wheels to sell?. Also bottom bracket -136mm 3RR!

Hmmm - let me know about those wheels... Or anybody else's got a pair of 7X rims/wheels for sale...

Also, I disassembled the bike with great pleasure o'er the weekend, and found the BB may be slightly bent - it's a 3RR! (136mm)... Must be the combo of wide chainstays and TA crank! Anybody else encounter this conundrum on old SJs with TA cranks? How solved?

Anyway, too cheap to buy a $175 Phil Wood (shipping to AK), I found these Kajita BBs for sale here:
https://www.oldbicyclejunk.com/zencar...roducts_id=200
and ordered one - they've got 2 more, apparently, and I hope this isn't actually another abandoned website selling old parts that were available 10 years ago...
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Old 09-20-13, 01:58 PM
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OK, it's not a 26.0 seatpost diameter - anybody know?

Originally Posted by hujev View Post
...the seatpost -- it's a 26.0, right? Found a decent laprade on eb for $16 shipped; on the way!...
OK, it's not a 26.0 seatpost diameter - anybody know?
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Old 06-08-16, 06:46 PM
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A few almost restored 1982 stumpjumper pix.

I thought I'd follow-up my original post now that the restoration is about done. (or almost, see for info)

Originally Posted by hujev View Post
OK, it's not a 26.0 seatpost diameter - anybody know?
Hey Hujev, it's 26.8!

And the 136mm Kajita Runners BB fits perfectly!

See now some pictures that I really shouldn't show since not yet fully polished, but geez I took all the time, so why not:
1982 lugged stumpjumper photos: part zero | rjl.us

More details about it there too. I ought to get it adjusted, polished all nice, etc. and rephotographed in a week or two (cf my Univega Gran Turismo pix for the quality I'm looking for).

/
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Old 06-09-16, 04:42 AM
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Nice stumpy...I also have a similar 82 and have always wondered how many of those were built with the TA cranks ...ect..excluding the first 400-500 tig welded version
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