Singlespeed & Fixed Gear - Smallest freewheel size

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LittlePixel
09-03-08, 10:09 AM
Any leads on the smallest (in teeth) freewheel available for a normal track hub? (in this case a Phil Wood Kierin hub)

It's running a 12t fixed at the moment which is dandy but I'd like to try a free-wheel set up for longer rides. I recall seeing evidence that the 14t is the usual smallest but 13's can be had - I just can't remember where I read it or who makes the smaller ones.

I don't want BMX ones as they're too small.

Oh - this being for this - my crazy fixed Brompton folder:

http://farm4.static.flickr.com/3115/2559892268_5db366b5ff_o.jpg

jerseybmx
09-03-08, 10:27 AM
if you have a flipflop bmx hub dk makes a 12t
crushkilldstroy
09-03-08, 10:31 AM
I love Bromptons so much. This super nerdy guy comes into my work a lot. He always folds up his Brompton and brings it along with him.

jerseybmx
09-03-08, 10:32 AM
and just a note the small bmx one 8,9,10,11. are all cassette hubs... not freewheels
LittlePixel
09-03-08, 10:39 AM
if you have a flipflop bmx hub dk makes a 12t

When i said BMX hubs are too small I meant threading not teeth - ideally I'd like the same but I know this isn't realistic; maybe I need a different hub so I can go for the small sizes.

Anyone know where I can get 115mm OLN rear hubs in 32h?
SinVoz
09-03-08, 10:45 AM
I've always wondered. My buddy has a 9 tooth cassette on his 20". Are they shimano style hubs like on road bikes?
LittlePixel
09-03-08, 10:46 AM
That's probably a shimano capreo cassette which has a few little ones bunged on the end
jerseybmx
09-03-08, 11:18 AM
it started out that way... odyssey essentialling copied the shimano DX hub. the really small drivers as they are called now are 1 piece. primo makes and 8t as well as profile. most of the companies have they own driver/ engagment systems now
zacked
09-03-08, 12:25 PM
The smallest standard freewheel you can get is 15 tooth, and the only place I've seen them is harris cyclery (http://sheldonbrown.com/harris/singlespeed.html#freewheels). 16 tooth is the smallest from shimano and ACS. Cheapest option by far.

You can go down to 13T if you use a standard cassette hub, (or 11 with a cassette cog), but it'd be hard to mod it to 115mm spacing.

Your best bet is to find either a BMX cassette hub or BMX flip-flop (go down to 10T with smaller threaded side) with a 3/8" axle and file it flat.