Originally Posted by Chombi (Post 16303901)

When most hear about "stamped" steel dropouts, they usually think of the big, flat, ugly looking ones you might have found on entry level and boom bikes from the 70's.
There are nice enough looking stamped steel DO out there. Ones that stick in my mind is the one used on some entry level Peugeots from the 80's like the ones on their PH10s. They are stamped but Peugeot bothered to add in window cutouts that make them look like they are forged. They even have what looks like thickened areas at the slot loke forged DO's do. I bet you can grind, round and smoothen them out at the edges that they can fool most people to think they are forged. Never heard of any failures with those Peugeot stamped DOs.

Originally Posted by SJX426 (Post 16303871)

Is that a parting line on the center of the part around the perimeter?

Originally Posted by iab (Post 16302890)

I don't know of a stamped Campagnolo road dropout but they certainly made stamped ones for track ends.

Originally Posted by Hudson308 (Post 16304289)

The '71 Sports Tourer frameset that I got from member Chrome Molly came from the Chicago cage with stamped Campy drops. All the other STs I've seen had forged Huret ones.

Originally Posted by Metacortex (Post 16304449)

I seriously doubt those stamped Campy drops were original to that frame, they were most likely replaced later. Schwinn had been using the forged Huret dropouts on the Superior and Super Sport long before the Sports Tourer, and that was a much more popular bike so those dropouts were plentiful at Schwinn. During '71 the Super Sport changed from forged to stamped dropouts sometime after the introduction of the Sports Tourer (I've seen them on Super Sports with frames dated as late as June '71). Finally, Schwinn didn't use those Campy dropouts on any other bike so it would be highly unlikely they would use them here.

Originally Posted by iab (Post 16302890)

The only possible functional advantage of forged over stamped is the thicker forged could possibly assist in axle alignment.

Originally Posted by SJX426 (Post 16304089)

http://farm1.staticflickr.com/206/48...0a4cdad354.jpg

Ahhh Vanilla! Laser cut I bet!

Originally Posted by Littlefish (Post 16302750)

Just found this thread, because Suntour GS dropouts are of consuming interest to me right now. I have a 1973 Carlton Corsair with Suntour GS dropouts and the offside rear one (ie drive side) is broken. Does anyone by any chance have a replacement available? Or a knackered Carlton frame from which a dropout could be salvaged? I have about five other Carlton frames, but none of them use the GS dropout...

Originally Posted by Chrome Molly (Post 16304852)

Forgeries, eh? Is there a big market in counterfeit dropouts?

Originally Posted by poprad (Post 16304074)

[IMG]http://farm1.staticflickr.com/206/48...0a4cdad354.jpg[/IMG]

Originally Posted by Chrome Molly (Post 16304852)

Personally, I think the greatest performance benefit of forged drops is that the skewer doesn't leave an imprint in it as it sometimes does with softer materials. Also, they seem to remain unpainted, and likely less rust-prone. ...

Originally Posted by John E (Post 16305357)

A softer metal would arguably hold the wheel tighter against driveline moment of force.

Originally Posted by browngw (Post 16305164)

I am dealing with a different but nice looking dropout on my latest project, a 1974 Sekine. Its stamped Shimano SF.

Originally Posted by orangeology (Post 16304667)

one of the prettiest stamp-out DOs, IMHO, is those found in Carlton built frames.

Originally Posted by old's'cool (Post 16311218)

If those Shimano SF dropouts pictured above are stamped, somebody went to a hellava lotta trouble to make them look forged. You are not going to get the rounded edges, and the sharp reliefs between the clamping surfaces and the base surface in a one-shot stamping process. For the same reasons as expressed by SJX426, I'm also skeptical that the Campy dropouts pictured on page 1 of this thread are stamped.