Freewheels on a Spot hub

[SwisSlesS]

My friend has a Bianchi DISS with a spot single speed rear hub. He currently has a 16 tooth freewheel and wants to get something smaller. I have always been under the impression that while 14 and 15 tooth freewheels exist, they are for a different thread pattern than most other freewheels. However, he found a site where they are selling 14 and 15 tooth freewheels that will fit on any normal single speed hub. http://www.acsbmx.com/product-freewheels-claw.htm

I still am guessing that the 14 and 15 tooth ones wouldn't work, maybe the site forgot to post that you needed a special thread patter for the smaller ones? What do you guys think? Will 14s and 15s work?

[D_D]

The fact that the top two smallest freewheels in the picture have a smaller remover from the lower bigger ones would surggest that they use the smaller diameter thread.

What about swaping the chainring, non-ramped and pined rings are only a couple of quid more than a freewheel and should be available in a variaty of sizes.

[Echo]

<----- stumped... I thought they were all the same...

[SwisSlesS]

Originally posted by D_D
The fact that the top two smallest freewheels in the picture have a smaller remover from the lower bigger ones would surggest that they use the smaller diameter thread.

What about swaping the chainring, non-ramped and pined rings are only a couple of quid more than a freewheel and should be available in a variaty of sizes.

That's what I was thinking D_D.

Anyone else have any ideas?

[bomberz1qr20]

14 and 15 are for flip-flop hubs, no MTB SS hubs that I know of are flip flop, as the hub spacing is 120mm instead of 135mm


From the ACS site:

All ACS freewheels feature chromoly sprockets with 4 pawls (2 pairs engaging alternately), for quick engagement. ACS 16T - 22T freewheels thread on Standard English hub threads, and remove with the ACS universal removal tool.

All ACS 14T and 15T freewheels thread onto smaller, metric "BMX Flip-Flop" threads, and are removed with the ACS 14T removal tool.

Left-hand-drive freewheels require left-hand threads, for both standard and small sizes.

[SwisSlesS]

Originally posted by bomberz1qr20
14 and 15 are for flip-flop hubs, no MTB SS hubs that I know of are flip flop, as the hub spacing is 120mm instead of 135mm


From the ACS site:

All ACS freewheels feature chromoly sprockets with 4 pawls (2 pairs engaging alternately), for quick engagement. ACS 16T - 22T freewheels thread on Standard English hub threads, and remove with the ACS universal removal tool.

All ACS 14T and 15T freewheels thread onto smaller, metric "BMX Flip-Flop" threads, and are removed with the ACS 14T removal tool.

Left-hand-drive freewheels require left-hand threads, for both standard and small sizes.



Oh, good stuff bomber. I must have missed that part. Thanks a lot :).

[SpasticJack]

Phil makes a flip-flop hub for fixed/single speeding.

I agree on the chain ring tack though, should be loads easier to get a larger ring up front than a 15t or smaller freewheel in back.

[riderx]

Originally posted by bomberz1qr20
14 and 15 are for flip-flop hubs, no MTB SS hubs that I know of are flip flop, as the hub spacing is 120mm instead of 135mm
[/I] Just so no one gets confused, there are a couple of types of flip-flops - the BMX type has a small threaded side and a standard threaded side. Then there are flip-flops like the Surly hubs that are for two standard freewheels, the Phils that fit a freewheel and a track cog and then there are track flip-flops with threadings for two track cogs/lockrings (which by the way can also be used with freewheels). Various widths are available for the above combos depending on the manufacturer.