I figure I am not likely to find what I am looking for, but I thought I'd try just in case: is anyone aware of a small bike (e.g., smaller than 50cm frame, ideally with 650C or 26" wheels), new OR old, that uses a threaded headset and a quill stem? Something like the Wabi 42cm frame would be perfect, but again, I am looking for something with a threaded headset, not threadless.

Thank you!

Fuji Feather comes in a 49cm. Fuji Bikes | LIFESTYLE | PAVEMENT - CITY SINGLE-SPEED | FEATHER

If you actually read the request, the OP is looking for something much smaller than 49cm.

Thanks, that is correct -- I'm looking for a bike for a petite female rider.

However, I do find it very interesting that the Feather has a threaded headset, which I wasn't aware of previously. I think it's great that there are still new FGSS bikes that come with this option. Bravo Fuji.

It's not single speed, but if you're open to a 3-speed rear hub, Linus has a 41cm mixte with 26" wheels, quill stem, and threaded headset.

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Thanks. I would be open to Linus for sure if the bikes were lighter -- I am looking for something reasonably lightweight (i.e., low-20 lbs weight range or less).

You could always have any steer tube threaded, although 1-1/8 quill stems are not common. Why do you insist on a quill stem? Aesthetics?

Right, sounds like more trouble than I am looking for -- ideally there's an off-the-shelf solution somewhere.

It's partly aesthetics (quill stems do look nicer than even the nicest threadless headset), but more importantly, we have a front-mount bike baby seat, and it really works best with quill stems (have tried both threaded and threadless).

I was wondering why you were so keen on a threaded head set then BAM, you come out with a reason I definitely hadn't seen coming. Best of luck with your search. Maybe have a chat with Wabi or one of the other firms and see what they can make for you - sometimes the solutions are there, just not on the websites.

Frames A-Z | NJS?EXPORT

njs baby seat on PedalRoom

Just a guess here, but is the reason the seat does not work well with most "non-quill" stems (is there a specific name for the stem type?) due to how the face plate typically protrudes past the top of the body of the stem? If this is the case, there are regular stems available with out a removable face plate. Just a thought.

Something like the wabi brazed stem below.

Stems