Seat tube stamped or just a dent?
04-06-20, 08:13 AM
#1
Senior Member
Thread Starter
Join Date: Oct 2013
Location: Great White North
Posts: 926
Bikes: I have a few
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 340 Post(s)
Liked 209 Times
in
104 Posts
Seat tube stamped or just a dent?
For good or bad I was very bored (too much for my own good) and decided it was time to refinish an old Moser. Any way as I stripped the paint off the seat tube and got to a dent I always knew was there, it looked a little strange to me. It has been there for the years I have had it and I always assumed it was from the front derailleur clamp. With the paint removed it looks like it was stamped and not a dent to me, possibly to place a derailleur braze on? Looking for other opinions as if it is a dent I will fill it prior to powder coating. Also what are the thoughts on the cable guide. They look a little ratty to me and thinking of changing to internal.
The bike is a Moser supersprint either 84'or 85'
The bike is a Moser supersprint either 84'or 85'
Last edited by daviddavieboy; 04-06-20 at 08:16 AM.
04-06-20, 08:39 AM
#2
Senior Member
Join Date: Mar 2014
Location: City of Angels
Posts: 4,870
Bikes: A few too many
Mentioned: 42 Post(s)
Tagged: 1 Thread(s)
Quoted: 1363 Post(s)
Liked 2,177 Times
in
1,182 Posts
It looks like a stamp from the factory to me...could be for a FD braze-on as you suspect.
Ben
Ben
04-06-20, 09:40 AM
#3
Ride, Wrench, Swap, Race
Join Date: Jan 2010
Location: Northern California
Posts: 9,181
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
Mentioned: 132 Post(s)
Tagged: 0 Thread(s)
Quoted: 1562 Post(s)
Liked 1,285 Times
in
856 Posts
I've never seen a tube crimped to locate a braze-on tab, but I've seen several frames with such indentations from an over-tightened front derailer.
Likes For dddd:
04-06-20, 10:34 AM
#5
Ride, Wrench, Swap, Race
Join Date: Jan 2010
Location: Northern California
Posts: 9,181
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
Mentioned: 132 Post(s)
Tagged: 0 Thread(s)
Quoted: 1562 Post(s)
Liked 1,285 Times
in
856 Posts
It's hard for me to imagine that the frame's maker would crimp the tube for a braze-on but not braze it on.
That would appear shoddy, no?
One option would be to force it out by shoving a lubricated, correct-sized socket through the seat tube. Be sure though that there are no pins or tube overlap preventing the socket from being pushed all the way through, and that the socket is short enough to pass through at the bb shell, or might be difficult to remove.
That would appear shoddy, no?
One option would be to force it out by shoving a lubricated, correct-sized socket through the seat tube. Be sure though that there are no pins or tube overlap preventing the socket from being pushed all the way through, and that the socket is short enough to pass through at the bb shell, or might be difficult to remove.
04-06-20, 10:51 AM
#6
Senior Member
Join Date: May 2008
Location: Fredericksburg, Va
Posts: 9,579
Bikes: '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, '94 Burley Duet, 97 Specialized RockHopper, 2010 Langster, Tern Link D8
Mentioned: 73 Post(s)
Tagged: 0 Thread(s)
Quoted: 1607 Post(s)
Liked 2,213 Times
in
1,103 Posts
I don't think the dent was from the factory. The two little punch marks, likely as a reference to where to place the braze on mount.
I would replace the cable guide, too far gone.
I would replace the cable guide, too far gone.
__________________
Bikes don't stand alone. They are two tired.
Bikes don't stand alone. They are two tired.
04-06-20, 11:02 AM
#7
Junior Member
Join Date: Jan 2014
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
It's hard for me to imagine that the frame's maker would crimp the tube for a braze-on but not braze it on.
That would appear shoddy, no?
One option would be to force it out by shoving a lubricated, correct-sized socket through the seat tube. Be sure though that there are no pins or tube overlap preventing the socket from being pushed all the way through, and that the socket is short enough to pass through at the bb shell, or might be difficult to remove.
That would appear shoddy, no?
One option would be to force it out by shoving a lubricated, correct-sized socket through the seat tube. Be sure though that there are no pins or tube overlap preventing the socket from being pushed all the way through, and that the socket is short enough to pass through at the bb shell, or might be difficult to remove.
04-06-20, 11:05 AM
#8
Senior Member
Thread Starter
Join Date: Oct 2013
Location: Great White North
Posts: 926
Bikes: I have a few
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 340 Post(s)
Liked 209 Times
in
104 Posts
I am inclined as well to think the punch marks are locating marks and the dent is well . . . Just a dent. As long as I have rode it it has had Campy SR parts but it had a Suntour AR front derailleur on it when I got it I will put the blocks on it and smooth the rest with silver. Thanks all.
