13t freewheel?
 

That isn't some weird BMX threading, does it exist? Can you point me towards it?
14t would be close enough as well.
Again, the polo bike. Trying to avoid the clown music on my way to the court.

Any hope of help finding one?
I can only seem to find BMX ones.

15T AC Racing 888 is the smallest 1.37X24 freewheel

What?

your language, that you've asked? some may find it odd and are they right?
people read and look.
again, the freewheel. I have no idea about threading 13t freewheel threading.

any hope others peoples will read and know and be right?

13t, 14t, and 15t freewheels exist, but they are metric threaded. You need to build a wheel with a BMX (race, not freestyle) flip flop hub and space the axle out (and possibly replace the axle) to accomodate your frame. Cheap BMX hubs are readily available.

Or, if you want a really interesting wheel project, build a wheel with a BMX cassette disc hub. Use a bolt-on cog on the fixed side and standard freehub cogs on the freewheel side, which go down to 11t.

Odyssey 11t freewheel:

http://www.enemite-bmx.co.uk/imgs/medium/FWOD4980.jpg

ocho
 

8 tooth...

https://www.jrbicycles.com/storefron...t%20driver.jpg

Whoa!

driver
 

it is not really a freewheel, it's a driver.

You could, of course, build a 700C wheel with a BMX mini driver hub, but I don't see the point, unless you are doing some sort of trick riding and need a tiny chainring for clearance.

point,what point?
 

no point. posted the smallest driver that I could find.

why so serious?

ding ding ding.

you know, a larger chainring fixes the same problem as a smaller freewheel...

The answer about the AC 15t is what I was really looking for.

http://2.bp.blogspot.com/_SeCS_oHDOh...+Black+web.jpg
Only comes in 35t.
Larger chainrings have been destroyed quite handily, so I'm getting one of these finally.
I don't feel like messing with BMX hubs and all that so a 15t will do fine, I just wanted as small as possible on the flip side since riding to the courts for polo on 35-22 is just silly, and the higher gearing I can get, the more likely I am to use the bike for more than just polo.

Now if I can just find somewhere that carries that freewheel and isn't out of stock...
Thanks for the help.

out of stock, out of production. Though I think this is the company so you could try emailing them: http://adventurecomponents.com/

(large-size 15T mentioned on this page: http://adventurecomponents.com/freewheels.htm )

about 3-4 months ago harris cyclery had some in and i was able to get one then. they are out now but maybe keep checking their site.

Alright, so, now I'm kind of intrigued by the whole BMX hub idea...
So if I were to get, for example, this hub, could I then put this freewheel on the large side, and this one on the small?
And then I'd just have to get it spaced out to 120, right?

Or would I have to find a BMX thread freewheel for the large side as well?

You could probably make that work, but the problem you'll run into with any of these options is chain length. The difference between a 13T and a 22T in back with that 35T up front will be 2" of chain. If you can slam your wheel all the way forward with the 22T, and have more than an inch of space to slide it back for the 13T, it'll work.

I don't know when we're getting more of the AC 15T freewheels in, but I'll post it to the blog if they show up.

When you drop below 13 teeth your efficiency drops off and cog wear increases dramatically... it is always better to run a larger chain ring unless you need some ridiculous clearance.

Those who ride geared bikes know how quickly the 11 tooth cog wears out on most cassettes.

Most people replying don't seem to actually be reading this, you however, are spot on, so thank you.
The bike I'll be putting this on has extended drops, but I'm not kidding myself about them being extended enough, 13 to 22 is a pretty big jump, I was planning on carrying 2 chains from the get-go, though from what you said, that MIGHT not actually be necessary, sweet.
I think I might go ahead and build a rear wheel with a BMX hub then, would make this a perfect setup and would only have to worry about space for one bike then. Fantastic.

That is correct. I have done it, not exactly with that hub, but a flip flop BMX hub, running a metric 15t ACS (not AC) freewheel on the small side and normal English threaded freewheels (16,17,18,20) on the other side. The hub is on my offroad SS, and I use the bigger freewheels for offroad and flip it over to the 15t when I end up riding that bike on the road or on a very easy trail. However, as helicomatic noted above, 22t-13t is a huge difference, and I'm not sure you can do it without also changing chains or removing/adding links. But you could very easily run more closely spaced pair of metric and english freewheels with a BMX flipflop, provided the axle was properly spaced.

put two master links in your chain.