wow... i'm really glad i have a surly and not EAI cog coming right now...

Four whole people?!? OH MAH GAWD!!!

Ok. Update! I went to my LBS and asked them to install my cog on their hubs.

1. Formula hub - Went it with a little force by hand.
2. Dura ace hub - Got stuck in the middle (Same issue with my hub).

So now I'm really confuse. I'm forcing the damn thing by hand right now and still won't go in. I don't have a 1/8 whip right now so this install will have to wait :(

if you force it, you're gonna strip the threads on the hub and have to get a new hub (unless you got double fixed hubs), plus pay to have a new wheel built unless you can build one yourself. Just get a new cog.

I won a 17t 1/8 EAI cog from bens on ebay last week. Something went wrong with my paypal payment and so my order was delayed. After reading this thread, I spoke with someone at ben's and they told me that they pulled the entire batch of 17t EAI cogs because they were indeed questionable. So I ended up going with the Milwaukee 17t cog.

Anyone have any experience with the Milwaukee cogs?

installed a 1/8" 17 tooth surly cog on my formula hub no problem at the LBS yesterday

sorry for resurrecting but i bought my 1/8 17t eai cog from bens in the first week of october after the complaints in this thread

i'm wondering if all eai cogs are hard to put on, meaning you can only get them on a little before they get stuck (then you have to force it on any more)

out of the three hubs i tried i could only get it on one (after forcing it)

shouldn't the cog thread on all the way without having to put too much force?

Then they're more incompetent then the average SSFG user in terms of mechanical ability.

installed that exact combo on my wheelset before they were stolen with no problems

Same here, except for the theft.

fwiw EAI stopped making the 17t for a while and all of these are a brand new batch of them

Dura-ace #1

so if i order another they would work fine?

Not necessarily, I think what he means is that for a while we were basically going through their NOS of 17t cogs, and it was only recently, when the market demand for their 17t cogs for sick skidz increased, did they start producing 17t cogs again. Maybe it's some quirk in the manufacturing process that cropped up in the first batch... who knows?

Mine worked fine, and it was almost definitely from the new batch. I ordered it from Ben's and they were out of stock of these for months before I ordered mine. I assume this was the lag time between when they ran out of NOS and when their first batch of new cogs ecame available.

older model 3/32" 17T on my Phil hub=no probs!

just chiming in here. No problems with my 17T EAI on an IRO hub.

no problems on mine. my cog was from 2006 probably.

Ok, now I have here a brand new EAI 17t 1/8 cog that won't screw onto my brand new Phil hub, while an old DA cog screws on the hub smoothly like greased rubber glove into... ****.

did you recently get it from bens?

no, mine came from some random ebay seller.

Anyway, I worked a bit with lots of grease and my DA chainwhip and I managed to get the cog on without having to resort too much to violence but I still bit pissed about this. If DA cog went on nice and smooth, why didn't EAI fit just as good?

And for the record, I've had Soma, DA, Cobra and no-name cogs previously and never had any issues with getting them to fit to Formula, DA or Miche hub threads.

I had this same problem as well with my DP-18s laced to formulas. After carefully inspecting and cleaning the threads, with no progress, I just decided to grease up the cog (surly 17t) and screw it on with firm but not excessive force (with the chain whip). It went on fine and the threads on the hub are fine as well. . .

i have an 18T EAI 1/8 cog on a formula hub w/ no probs....i would think the cogs bad, not the hub

try another brand cog yet?

Is the fitment problem still apparent in the recent batch? I'm about to order one from Ben.

surly cogs ftw!