Originally Posted by
dddd
It's a Carrera Sport.
I had one in the 58cm size. Angles were steep and the frame was a stiff one. The bike was heavy gas-pipe but had a very distinctive look to it.
Original wheels were alloy clinchers on hi-flange hubs, freewheel was a quite large Suntour 5s. Mine was gloss black with the same chromed lugs and socks. I found it next to the dumpster at Bicycle Emporium in a quite-weathered condition, but it cleaned up nicely and I eventually sold it.
Have always thought of these as Carrera Sport as well. In a recent forum thread a poster stated that there was also a model called simply Carerra.
Owned two or three of these and seen a number of others but have never seen one with a plate style chainstay bridge. Wonder if the bridge on this example might be an indication that it is a Carrera rather than a Carrera Sport. Not asserting such, just wondering; perhaps the ACER-MEX experts would care to comment.
Got one new about 1974 and it came with tubular wheels rather than wired-ons. Hubs were ordinary Sunshine 36 hole large flange qr. Rims were marked with a Windsor transfer.
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In case you envision using a different stem for your planned build be advised that steerer takes an .833 size stem.
Here is photo showing the lugset employed to construct the frame -
seat lug was offered both malaguti style and "regular."