If you’re a serious home mechanic, if you buy frames and put parts on them or do your own maintenance in your own home bike stand, you’ll find this to be a strictly unnecessary but super nice tool to have.
A seat post does the same thing, but if you work on bikes a lot, you know that sometimes for any number of reasons, the seat post is not up for grabs. Lights or saddlebag or some kind of rack or support on it, not enough of post exposed, and if the bike goes in and out of the stand frequently, there ought to be a faster, smoother way to put it on and take it off. This thing, which we’re now calling a Frame Quill, was developed just north of Mexico, at Joe Bell’s painting place, because they're good for painting bikes, too. Every Rivendell frame that’s come though here since has been held in place by one.
The frame quills we have here are deluxe versions of those. They're made Jim Stein, whose shop in Arizona is also north of Mexico. We sent him a sample and said, "Jim, make it better," and he did. We thought we’d have twenty of them made but we've had at least two hundred and fifty, because they kept selling out. get any more of them.
Two sizes: Skinny, for frames with that take seat posts anywhere from 26.8mm to 28.9mm <--there's no such thing as that size, but if somebody makes one and you have one, these'll fi); and Fat, for bikes that take seat posts 29.8mm to probably 32mm.
Grease the threads at the bottom of the bolt, and don't overcrank it. If you regularly snap shoe laces and can't drink a beer out of a can without crushing the can, stay away. Othewise, don't sweat it, just be your reasonable self.
Selling pro tools for home use is a lousy plan to make money, but we like to bring you super neat stuff when it comes up, and this is one of those things. This is the second-to-last time we'll get these. Onward, etc.