Adapter for 1" threaded to 1" threadless??
 

Does such a beast exist?

We all know and love (or not) the adapter to use 1 1/8" threadless stems with a threaded fork, but is there an adapter that does the same thing except for a 1" threadless stem? Googling it seems to show that one is made by Origin8, but I see no mention of it on forums, pictures of one in use, etc.

Anybody used or seen one?

So, you want to use a 1" threaded fork, and threaded headset. Then add a quill stem with a threadless adapter in 1"?

I'm not sure what the point would be to use the 1" quill over a 1 1/8" quill. The 1" threadless stems are often hard to come by.

Is the idea to use a 26.0 bar?

Of course, one option would be to hunt for a fork with a really long threaded steer tube that can be cut, or a 1" threadless fork.

There is a better piece of equipment, the Innicycles adapter, which combines the headset AND the quill adapter.

What it basically does, is replace your quill stem and headset with a combined unit that has excellent sealed bearings and very easy adjustment.

It has an inner quill that fits down inside the steerer of the fork, like any other quill stem, but around that is a threaded "sleeve" that fits down over the outside of the fork steerer, and threads onto it. That is bonded to the top cups of a headset, so when you spin it down, it combines with the bottom cup/bearing, the fork steerer, and the top cup/bearing to create both an easily adjusted, really good quality headset, with a steerer.

The steerer is then 1 1/8, which fits almost all modern stems. I'm not sure if they would produce one in 1", as the majority of the spacers and stems now go 2x 1 1/8".

In this case, the fork can be the OEM fork, or can actually be a bit shorter, as long as it gets up there to the top of the head tube or so, but it doesn't have to go the full 3/4" or so above it that many older headsets require.

And, unlike a modern threadless setup, the stem is NOT required to keep both the headset tight and the bar straight. The adapter takes care of the headset, and the stem simply holds the bar onto the stem. There is a quill bolt, as well, with a cone nut. I doubt it's really needed, but this piece of bike gear is engineered for the long run.

joejack951 here on BF invented them and sells them. They come in black and satin silver.

A long time ago, the first adapter I used was 1". Haven't seen it in years, used it on a Kestrel. I've only see 1 1/8" since, and some even bigger ones, not sure what they were for.

As far as using a modern 1 1/8" stem for a 25.4 or 26.0 bar, there are stems out there that do just that.

https://cimg6.ibsrv.net/gimg/bikefor...97f6798a79.jpg

https://cimg7.ibsrv.net/gimg/bikefor...edf1c0195c.jpg

This question came up while I've been looking for a stem for my Davidson. The adapters for 1 1/8" are fine, but a lot of the 1 1/8" stems have a bigger diameter than the frame tubes, which doesn't jive well to my eye. But on the other hand, there are some nice 1" threadless stems out there, i.e. Salsa cromo, Grammo, etc. So if there's an adapter to use a 1" threadless stem, that would open some more options.

I realize the market segment for this would be tiny, but in my case, I don't want to replace the fork or use a 1 1/8" stem, so the options would be to use an actual quill stem, or possibly a 1" threadless adapter, if it exists.

I mean, look at this thing. Now we're talking! The size flows with vintage bike tube size and it just looks right. It'd be cool to be able to use an adapter to use one of these on my bike with a threaded fork.
https://cimg3.ibsrv.net/gimg/bikefor...9dd5aeb56a.jpg

I've seen the thread on that headset conversion...pretty slick!

My guess, if the petite-ness of the stem is an issue, get the Innicycle adapter in satin, then source the most petite-looking stem you can find that holds a 25.4 or 26.0 bar. If it's black, simply strip it down and polish it, perhaps?

I've been discussing this with joejack951 and we both have found fairly nice stems that don't vary much from the frame tube size.

I have to admit, when I visited various NAHBS shows over the years, it took a bit of getting used to, to not see a quill stem, but none of the builders used the quill adapter, mainly because they are, I'd get a silver Innicycle adapter, a KCNC Wing stem for 26.0, polish it, and go with a 64-42 26.0 Cinelli bar.

Another option...

https://www.ebay.com/itm/351784121927

https://i.ebayimg.com/images/g/qPkAA...hC/s-l1600.jpg

Not a lot of choices, but this does take the modern bars with an open face stem, and a quill.

I think I only have one in use at the moment, but so far it seems to be working well.

I have one of those, but I do not trust my head to the two small clamp bolts. I installed it, with 31.8 Roval bars, and the entire ride, I kept thinking the bolts would break and I'd be giving Quasimodo more of a run for the money than I do now.

I think the OP is mainly concerned about the appearance if he goes with a modern stem. The quill adapter is kind of a double whammy. Most are ugly, and then the thick stem helps to kind of kill the elegant C&V buzz.

I've come across that one, too, but I don't want a 31.8 bar on this bike either, for the same reason I don't want a 1 1/8" stem.

I know, I'm being picky!

This page lists an option for 1" for to 1" stem. That sounds like what I'm thinking but there's no picture, can't find a picture of one in use, a reference to it anywhere, etc.
Product Description | Origin8

Yes, this is pretty much all about the look of it.

This may be what you are looking for. It came with 2 shims (frame and stem). The brand I had was a TranzX, but the seller listed it as Summit. I used the frame shim so I could use a 22.2 quill.

https://cimg1.ibsrv.net/gimg/bikefor...672618649b.jpg

This is the seller I bought it from. May want to ask the seller about it.

Thanks for the lead, maybe I'll check with them on that one.

Wasn't there a Velo Orange stem that kind of looked "vintage" because it had the spacer built in? Kind of a "L-shaped" stem?

Cinelli made one. I had a NOS one for a while, but it's gone to someone else now.

If I could find about 3 of those Salsa's in 70-80mm, I'd buy 3 more....

^joejack951 says to contact him directly, his cottage industry is still a very small enterprise...but as soon as I have a project to try this on I'm going to be a customer. it's a really good-looking solution IMO.

I LOVE quill adaptors, one of my favorite parts to sell--they take customers' older bikes into the realm of easy bar and stem changes, usually because of fitting needs. Three brands, three heights: Origin8 at 140mm (like a generic short quill stem,) Velo Orange at @170mm (like a Nitto Technomic Deluxe stem,) and Soma at 200+mm (like a tall Technomic.). I know it won't look like a vintage Cinelli stem, but it does mean you can make your bike fit without having to beat the bushes on eBay for six months to get just the right stem!

Yes, PM to joejack951.

I'm about to order my second one, in silver, for my Klein.

[MENTION=149088]brockd15[/MENTION] Simworks (by Nitto) is exactly what you're looking for. Normal 1 1/8 threadless stems but made from slender cromo tubing. Comes in TIG or fillet brazed, chrome or black, a variety of clamp configurations and bar diameters. Get one and use it with a normal 1" to 1 1/8" threadless adapter.https://cimg5.ibsrv.net/gimg/bikefor...7520e83a7f.jpg

https://cimg0.ibsrv.net/gimg/bikefor...f667328156.jpg

https://sim.works/collections/stems-simworks-by-nitto

That looks pretty nice, I like the black one.

I found the tubular stem raiser makes a good Quill,
threaded fork, to threadless adapter
7/8" OD bottom, 7/8" ID top , 1/16" wall tube used so its OD on top is 1"..

Common shim spacers let you use the abundant 1.125" range of stems.




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