1979-ish? Motobecane Grand Jubile
08-18-11, 09:33 AM
#1
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1979-ish? Motobecane Grand Jubile
I'm very excited to get this - I haven't received it yet and hopes this doesn't jinx things. An apparently 1979-ish Motobecane Grand Jubile. Most parts appear to be original with the exception of Suntour Superbe rims laced to unknown brand double-wall 27" rims and a six-cog freewheel. I don't know if it's standard or not (not - according to the 1979 catalog) but it also has a Nervar crankset. I've included a shot of the serial number just to see if anyone can provide me with any particulars, esp. if anyone knows if it has a French or standard headset and Swiss or standard bb. Thanks. I must admit that the photos are the sellers and not mine.
08-18-11, 09:37 AM
#2
Senior Member
my new roomate has this exact same bike ! (I mean not this one in particular , but this model / paint scheme) I'm pretty sure it is a Swiss BB , interested to learn more.
08-18-11, 09:42 AM
#3
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French headset and Swiss BB. Nice bike.
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08-18-11, 10:01 AM
#4
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How did the OP determine the bicycle's vintage to be 1979? I found a near identical M GB at the Dump and after researching the bike, serial number and most importantly, the components fitted, I determined mine to be 1978...
Anyway, I have found my M GJ to be a wonderful bicycle, sporting a surprisingly rewarding ride quality. Nice bike and enjoy.
Anyway, I have found my M GJ to be a wonderful bicycle, sporting a surprisingly rewarding ride quality. Nice bike and enjoy.
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Last edited by randyjawa; 08-18-11 at 11:02 AM. Reason: speling
08-18-11, 10:33 AM
#5
my name is Jim
Very nice bike. Saw it on eBay and the great condition it was in but way too big for me. Good buy!
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08-18-11, 10:35 AM
#6
incazzare.
I really love that particular paint scheme.
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08-18-11, 10:45 AM
#7
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How did the OP determine the bicycle's vintage to be 1979? I found a near identical M GB at the Dump and after researching the bike, serial number and most importantly, the components fitted, I determined mine to be 1978...
Anyway, I have found my M GB to be a wonderful bicycle, sporting a surprisingly rewarding ride quality. Nice bike and enjoy.
Anyway, I have found my M GB to be a wonderful bicycle, sporting a surprisingly rewarding ride quality. Nice bike and enjoy.
08-18-11, 11:02 AM
#8
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Did you mean M GJ?
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08-18-11, 11:25 AM
#9
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How did the OP determine the bicycle's vintage to be 1979?
BTW, I love your website and have been gleaning over it for info.
Last edited by wintermute; 08-18-11 at 11:29 AM.
08-18-11, 12:40 PM
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Hey Wintermute, where on LI are you? Here's my M GJ on a ride last Saturday:
08-18-11, 01:27 PM
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08-18-11, 05:17 PM
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1. According to on line 1978 catalog, the GJ came with Bocama lugs.
2. I picked up a GJ mixte last week, the Suntour components are mid 1977, and the specs match the 1978 catalog.
https://www.velo-pages.com/main.php?g...geViewsIndex=1
Triple crankset is not original.
Swiss bb.
2. I picked up a GJ mixte last week, the Suntour components are mid 1977, and the specs match the 1978 catalog.
https://www.velo-pages.com/main.php?g...geViewsIndex=1
Triple crankset is not original.
Swiss bb.
08-18-11, 05:20 PM
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I thought the red-on-black ones were 1976-ish (or am I thinking Grand Record?). I just built up a 1978 (bought frame from original owner) that's siiver-on-gray (with the curly Nervex lugs). I also really like the red-on-black; though I'd take a black-on-red if I could get one. Vitus 172 tubing is earlier than ones with R531 -- and lighter. I'm not at home now, or I'd check the serial number for you.
- So I was under the impression that Vitus came later (albeit it it may have been spec'd earlier too for all I know).
The '78 the catalog specified Vitus :
https://www.bulgier.net/pics/bike/Cat...and_Jubile.jpg
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08-18-11, 06:39 PM
#15
my name is Jim
Vitus came later. The early M GJs (74-76) are 531 frame with hi-ten forks. In 77 they switched to Vitus 172. In 78 they switched to the Bocama Pro lugs. The Moto catalogs for most years are on line at bulgier.net
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08-19-11, 04:47 AM
#16
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Thanks for the Bulgier info. I guess I don't have a '78 - my fork is Vitus 172...must be a 79 or later.
08-19-11, 05:40 AM
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08-19-11, 06:25 AM
#18
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It looks like the color was available for a few more years. thanks to bulgier though, I think I have the year pinned down. It appears that Moto went back to Simplex derraileurs after 1980 and started messing around with different tubing sets, so based on the 6-cog freewheel, Nervar crankset, and Moto-branded bars (as well as Vitus main tubes and fork), it appears to most closely resemble a 1980. Oh...and the frame had brazed-on water bottle cages after 1980 - which mine does not have.
Last edited by wintermute; 08-19-11 at 06:28 AM.
08-19-11, 07:29 AM
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My Moto GJ is a 77 with full Japanese components including the drop outs ( SunTour ) and it is 531, as far as I can tell it is the first year with full Japanese components and a 531 frame the 76 was partial Japanese & 531 and the 78 was Vitus. Below are a few pic when I first picked it up.
