Options for height and angle on threadless stem?
 

There's no threadless-to-quill stem right?

Looking at the Cannondale Quick 6.
https://www.cannondale.com/en-us/bik.../quick/quick-6
I believe that's a threadless stem. That's from Google Gemini though. I'm not sure where it's getting that info. That specs and geometry page from Cannondale doesn't say what the stem is for sure.

And this answers that. This is a quill stem on the Raleigh. I like how it goes straight up and has the adjustable tilt. On the Cannondale Quick 6 the stem goes out horizontally and then to the handlebars. I see there are extensions to the threadless stem, which might be the only option.
https://www.bikepedia.com/QuickBike/...spx?item=18283
Handlebar Stem Alloy Adjustable Quill

I see lots of quill-to-threadless adapters, but are there threadless-to-quill adapters or options? ie Could I take a Cannondale Quick 6 with a threadless stem and somehow get a quill stem on there?

Is there any threaded stem then where you can adjust the angle of the stem directly above the stem, an adjustable threadless stems similar to an adjustable quill stem? Head tube, continuing in a quasi-vertical line from the headtube to the stem, to an adjustment point on that stem still in line with the head tube..... but unthreaded. Does that exist? The adjustable unthreaded stems I'm looking at all go out horizontally first.

On youtube.
Should you use an Adjustable Handlebar Stem?
BAKCOU

He's got a threadless adjustable stem I believe that's more of what I'm thinking of.

I figured I'd find something once I posted. (And then the threadless-to-quill doesn't exist? Because you would just use this threadless adjustable stam.)

And maybe add an extension before that if it's needed.

It should be possible, but inconveniemt. You could use a locking collar in place of a threadless stem, to hold the headset together, and then fit a quill inside the steerer while avoiding whatever device you used to preload the headset. You'd need a substantial shim to fit a stock quill stem. It seems easier to make a threadless stem to your requirements. It's hard to see how combinimg the two types is better than a threadless stem, threadless is a superior system.

You can get a stem for a threadless headset that has adjustment to change it's angle. However if you are buying a new bike, I would think you buy a bike that more suits the position you wish to have on a bicycle. Without having to change it up.

An Electra Townie or Electra Cruiser 7D might be the better choice for you. https://electra.trekbikes.com/us/en_US/townie/

The thing about adjustable stems is they get adjusted to the nearest and tallest position, then they're never adjusted again. You're carrying around an ugly heavy thing that clicks and squeaks, when you could just have bought that shape/size of stem, or a combination of stem and riser bar to put your hands in the same position.

There are so many threadless stem options as far as length and height goes, that trying to make a quill stem work on a threadless setup doesn’t make sense, unless you’re just curious?

So as we have said in all your other threads GO TEST RIDE SOME BIKES. No need to speculate or look to advice that probably won't be taken just go ride some bikes, figure out what bike is going to work best for you and then ride it more and more and more and then come back and tell us what you may feel if need be. You may not need to do it but you haven't even test ridden the bike yet you don't even know anything about the bike more than what it says on a website and you are already wanting to alter an unknown position. I would understand if you were a fitter or super knowledgeable about bikes but you are not close yet.

Seriously take some advice in this case and GO TEST RIDE SOME BIKES.

I don’t know if this is still available:

https://somafab.blogspot.com/2011/01...nator.html?m=1

Or why you’d bother using it with a modern hybrid bike.

There were also some hybrids awhile back that came with a sleeve on the steerer, on which an oversized (1 1/4”) threadless stem could slide up and down a couple inches. Don’t remember what that system was called.

As someone else has said, you’re vastly overthinking things and should just go try out some bikes.

"We're often approached by customers who have a Nitto or Cinelli quill stem and can't use it because their fork is threadless."
I like my old Cinelli stuff, the solution I found was to buy a couple of ~1980s bikes to fit it to. Used to be I would slam a stem, these days I have them fully extended, that's one adjustment in 30 years. 😀