Originally Posted by
solveg
This is one of the first mountain bikes and it has touring geometry.
I don't know if it is or isn't a proper touring geometry. I just think of mountain bikes as being the ideal for off road riding. And touring is done on the road. So my comment was more that Mountain Touring seemed like an oxymoron from the point of view that touring is fairly long distance riding and on roads of some sort. So think of it as my bad dry humor with maybe a wee bit of misconception and nothing more.
I’m trying to use as many of my Atlantis parts as I can, so I would have loved it if I could have just moved the (quill) stem and handlebars over as is. I might still do that with this adapter just to see if the handling is ok if I put the bottom of the drops equal to the seat. I hadn’t really thought about just putting in a new headset, so I’ll have to read about it. That would give me a standard
dimension to work with. But the adapter is only $25 if it’s a safe option.
I put a similar adapter in my '91 Schwinn Paramount that I rebuilt and put 11 speed Shimano on. As long as the length of the part going down into your steerer tube gets the wedge to the proper depth, then you should be as safe as anything else. I'll certainly never use a 7 style stem again. If I ever get an old bike again, the adapter will be one of the first things put on it. Though I'd consider having the steerer cut off and a new piece brazed on to go entirely threadless.