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Jeunet Franch Comte Model 630

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Jeunet Franch Comte Model 630

Old 04-13-10, 10:19 AM
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CV-6 
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Jeunet Franch Comte Model 630

Thought I would share this with you before it disappears. It is remarkably complete and in not all that bad of shape. Remains of a 531 decal on the seat tube and a complete decal on the left fork. Typical replacement of the front Simplex derailleur. Too big for me, but bought it anyway when I saw the TA crank and Mavic rims. I am not too up on TA, but I believe them to be an early version. The pedal threads are capped. Notice anything odd with the cranks?

Now for the rims. I have never seen this model Mavic. They are alloy, 700c. It's not in VeloBase. Anyone recognize the rims. I will add them soon to VB, but was hoping someone might recognize them. They are laced to Tipo hubs and if it weren't for the big flat spot in the rear rim, I might use them. I may yet. Headset is either Stronglight P4 or early Competition. Won't know until I take it apart

Gotta love the seat.....









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Old 04-13-10, 11:03 AM
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I had an alloy Araya rim in 27" with that exact profile, probably a clone of the Mavic.
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Old 04-13-10, 11:44 AM
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very nice jeunet 630! it's in better shape than mine:



i see what's odd with the cranks: the crank arm is bolted to the outside of the large chainring, not the inside. i also have an inkling as to why someone did that: on my 630, the chainline is such that the outer chainring only works with the three smallest cogs. someone may have attempted to achieve a more forgiving chainline by moving the chainrings more inboard this way.
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Old 04-13-10, 12:04 PM
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Originally Posted by southpawboston View Post
very nice jeunet 630! it's in better shape than mine:
It is? Not to my eyes. Yours looks pretty nice.

i see what's odd with the cranks: the crank arm is bolted to the outside of the large chainring, not the inside. i also have an inkling as to why someone did that: on my 630, the chainline is such that the outer chainring only works with the three smallest cogs. someone may have attempted to achieve a more forgiving chainline by moving the chainrings more inboard this way.
Interesting observation. I would not have thought of that. It does shift nicely despite the plastic Simplex.
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Old 04-13-10, 04:05 PM
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I've a '73 Raleigh Super Course with the original ( I believe) Simplex Prestige plastic deraileurs that shifts nicely though I hold my breath each time.
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