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PostPosted: Sun Nov 19, 2017 10:52 pm 
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Joined: Thu Oct 12, 2017 3:30 pm
Posts: 6
I Found the frame and refurbish and rebuilt a racing bike. It was unindentified for last 3 Month. I Need to confirm that this bike is . 1970s Motobecane Grand Record with Professional Nervex lugs . 531 Tubing.( Refer to Origami night lamp 1970 Motobecane Grand Record. The frame and lugs is same as mine.Imagehttp://s1175.photobucket.com/user/izak18/media/DSCF3149_zps2h4xgegd.jpg.html?sort=3&o=22http://s1175.photobucket.com/user/izak18/media/DSCF3149_zps2h4xgegd.jpg.html?sort=3&o=22


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PostPosted: Sun Nov 19, 2017 10:54 pm 
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Joined: Thu Oct 12, 2017 3:30 pm
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PostPosted: Mon Nov 20, 2017 11:14 am 
Retro Guru
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Joined: Mon Mar 02, 2009 4:22 pm
Posts: 1586
Early 50s is a starting point, as it looks like it has the earlier Nervex Pro lugs with the central horns rather than the fish tail.

Look for a number on the rear dropout, seat cluster, steerer or stamped in the BB shell. Have a root through the frame builders section of Classic Lightweights to see if you can id it from the frame number. Unfortunately, it doesn't have any distinguishing features that would identify it as a particular builder.


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 Post subject: Re:
PostPosted: Mon Nov 20, 2017 12:07 pm 
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Joined: Thu Oct 12, 2017 3:30 pm
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Thank you. The only no I found was 466 with Name Nervex. At bottom of frame.


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PostPosted: Mon Nov 20, 2017 4:59 pm 
rider | rBoTM Winner
rider | rBoTM Winner
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Joined: Fri Jan 25, 2008 1:42 pm
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Location: West Yorkshire
Are the bottom bracket threads French size? I would imagine a Motobecane of this era would be?


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 Post subject: Re:
PostPosted: Mon Nov 20, 2017 10:59 pm 
Retro Guru

Joined: Sun Aug 22, 2010 7:07 pm
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Location: Cotswolds
The frame has an early 50's appearance, perhaps some sharp close ups of the details might help.

If the seat tube is 1 1/8 inches outside, the diameter of the inside might help identify whether it is 531 or a light drawn tube.

Keith


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PostPosted: Tue Nov 21, 2017 7:27 am 
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Joined: Thu Oct 12, 2017 3:30 pm
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Old Ned wrote:
Are the bottom bracket threads French size? I would imagine a Motobecane of this era would be?

Hi. Thank you. It is French.


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 Post subject: Re: Id my Racing bike
PostPosted: Tue Nov 21, 2017 12:20 pm 
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Joined: Thu Oct 12, 2017 3:30 pm
Posts: 6
The frame was found with rear derailleur Suntour VX. Front Golden Arrow and Clamp on shifters . At Bottom simplex Cable holder to change gears. Brake calibers Weinmann centre pull. Attached a Closer Photo. I do find it hard to post photos. [img]http://i1175.photobucket.com/albums/r638/izak18/DSCF2946_[IMG]http://i1175.photobucket.com/albums/r638/izak18/DSCF3149_zps2h4xgegd.jpg[/img]Image[/img]


Last edited by Izak on Tue Nov 21, 2017 12:34 pm, edited 1 time in total.

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 Post subject: Re: Re:
PostPosted: Tue Nov 21, 2017 12:23 pm 
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Joined: Thu Oct 12, 2017 3:30 pm
Posts: 6
keithglos wrote:
The frame has an early 50's appearance, perhaps some sharp close ups of the details might help.

If the seat tube is 1 1/8 inches outside, the diameter of the inside might help identify whether it is 531 or a light drawn tube.

Keith

Hi. The saddle post is 26.4. Measurement from outside diameter 32 mm.Thank you Izak


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