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Bolt-on Disc-Cog - Availability?

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Old 02-04-07, 10:32 AM
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Bolt-on Disc-Cog - Availability?

So, I know there have been threads about this in the past, but....
Does anyone know where I can actually get ahold of one of the fixed-gear cogs that bolts onto the standard 6-bolt iso disc rotor mount?
I know a few people said they got some from Kogswell, and if so - how did you manage it?
I e-mailed the kogswell people several times, and they obviously don't want to sell them, because they never responded to me.
So...anyone know of a place that actually sells them, prefferrably online? I know I could take a regular cog to a machine shop and have them drill it, but the cost of doing so kind of defeats the purpose of the cog in the first place.
Thanks!
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Old 02-04-07, 10:36 AM
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https://www.boonerings.com/cr/orderformchainring.html

Not cheap.
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Old 02-04-07, 10:40 AM
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Yeah..They look sweet as all get-out, but $45 (incl. shipping) for a 16t cog is mighty hefty.
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Old 02-04-07, 10:53 AM
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$45! They used to be $80. Now its really tempting.
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Old 02-04-07, 11:04 AM
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$45 isn't bad, most good cogs are 30ish retail. I mean, this is the board where Sugino XD's won't do, we have o have 75's
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Old 02-04-07, 11:07 AM
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also try emailing info@kogswell.com

they call em kogs, and i know they had some at 1 point.
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Old 02-04-07, 11:09 AM
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I guess $45 isn't bad. But really, manufacturing a simple steel disc-cog would be soooo easy if you were already making cogs. Shimano BMX cogs are only a few bucks, and you'd just need to drill six holes in them before youheat-treated them. I'm just surprised that there is nobody out there doing this.
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Old 02-04-07, 11:16 AM
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Originally Posted by Analog
I guess $45 isn't bad. But really, manufacturing a simple steel disc-cog would be soooo easy if you were already making cogs. Shimano BMX cogs are only a few bucks, and you'd just need to drill six holes in them before youheat-treated them. I'm just surprised that there is nobody out there doing this.
pm kogswell. they're doing it.
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Old 02-04-07, 11:34 AM
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I mean, I agree that there is nothing about the item that makes it necessarily so expensive, not having to do threads should make them hugely cheaper to make than normal track cogs. I'm just saying that given the amount of money people spend on every other part of the bike around here, these things aren't bad at all.
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Old 02-04-07, 11:39 AM
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Originally Posted by Landgolier
I mean, I agree that there is nothing about the item that makes it necessarily so expensive, not having to do threads should make them hugely cheaper to make than normal track cogs. I'm just saying that given the amount of money people spend on every other part of the bike around here, these things aren't bad at all.
Yeah, I agree. For a titanium cog, $45 is a good deal, and I'll probably go that route eventually.
I was just hoping to buy a pile of different sized cogs for that much, and have the ability to swap them freely and easily. Unfortunately, Kogswell and everyone else who supposedly makes them seem to snub my e-mails, and don't have any way to just buy them off their website.
When I do get a cog, though, fixed-gear mountainbiking in the snow is going to be amazing!
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Old 02-04-07, 11:42 AM
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Originally Posted by Analog
Unfortunately, Kogswell and everyone else who supposedly makes them seem to snub my e-mails, and don't have any way to just buy them off their website.
lame! it's not personal though, try calling them.

i also hear that gene spicer's been known to drill a cog. phone's always best.
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Old 02-04-07, 12:32 PM
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The boone cogs are not just drilled out BMX cogs. They are milled with a shoulder that fits the ISO mount. Better by design, but who knows in practice.
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Old 02-04-07, 01:08 PM
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snub your emails? how long have you waited? not everyone sits on the internet all day...
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Old 02-04-07, 05:06 PM
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Originally Posted by spud
snub your emails? how long have you waited? not everyone sits on the internet all day...
Well the first time I tried e-mailing Kogswell, etc, was probably about 3 or 4 months ago, then again about a week ago. I would hope that's enough time to write "Yeah we got 'em, send us $10" or "Nope, sorry - just a rumor." Maybe a small purchase like a cog isn't worth their time, but some kind of response would be nice. And it was a few companies, not just kogswell - I don't want to pick on them, I just heard from several people that they really do make them.
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Old 02-04-07, 06:40 PM
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Originally Posted by Analog
Well the first time I tried e-mailing Kogswell, etc, was probably about 3 or 4 months ago, then again about a week ago. I would hope that's enough time to write "Yeah we got 'em, send us $10" or "Nope, sorry - just a rumor." Maybe a small purchase like a cog isn't worth their time, but some kind of response would be nice. And it was a few companies, not just kogswell - I don't want to pick on them, I just heard from several people that they really do make them.
I emailed Kogswell several weeks ago about the same thing and got no response either.
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Old 02-04-07, 08:12 PM
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Cogs $10 delivered!

Originally Posted by Analog
So, I know there have been threads about this in the past, but....
Does anyone know where I can actually get ahold of one of the fixed-gear cogs that bolts onto the standard 6-bolt iso disc rotor mount?

So...anyone know of a place that actually sells them, prefferrably online? I know I could take a regular cog to a machine shop and have them drill it, but the cost of doing so kind of defeats the purpose of the cog in the first place.
Thanks!
Get ahold of this guy.

https://forums.mtbr.com/showthread.ph...95455#poststop

Last edited by Soil_Sampler; 02-05-07 at 06:44 PM.
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Old 02-04-07, 10:48 PM
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not to mentiont he boones are ti not hardened steel spicer also make a moderatly priced ti and I think al disc cog

comparing the price between disc fixed cogs and normal track cogs is a foolish thing you are talking two different technologies and two different materials
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Old 02-04-07, 11:02 PM
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Originally Posted by mihlbach
I emailed Kogswell several weeks ago about the same thing and got no response either.
****, I remember there was this kogswell guy on BF, posting in one of the threads where people were pleading to buy such sprockets. I e-mailed him immediately, and got jack ****.

And I remember the guy even saying something to the effect of "please send me an e-mail, and we'll arrange something". How lame is that?
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Old 02-04-07, 11:07 PM
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I think kogswell is out of business
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Old 02-04-07, 11:10 PM
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Originally Posted by Analog
Yeah..They look sweet as all get-out, but $45 (incl. shipping) for a 16t cog is mighty hefty.
Those sprockets are top-notch, no question about it, and Ti-made, sweet, but I prefer steel. Steel has higher hardness (typically) than Ti, so it lasts longer in this kind of application - and it's way cheaper.

Plus, in my case the shipping would be extra, and seems to be pretty steep, even though that sprocket could nicely fit in a simple envelope.
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Old 02-04-07, 11:13 PM
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Originally Posted by Retem
I think kogswell is out of business
kogswell is very much *NOT* out of business.
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Old 02-04-07, 11:32 PM
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I emailed Kogswell about 2 weeks ago, and got a response in 1 day. Matt sent me a paypal invoice for a cog, and I had it within a week.
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Old 02-04-07, 11:39 PM
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yep, found it: sent Jan. 19th, to info@kogswell.com.

I'll try to send an e-mail from my corporate account. That seems to always get people's attention. Aaaahh... people are so shallow....
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Old 02-04-07, 11:39 PM
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orly are they still making their frames and what not as well?? and how much was the cog
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Old 02-05-07, 01:15 AM
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you could also take a drill to the cheap old crappy cog of y0our choice, unless its a nice bike and it needs a nice cog. Still, 8 speed cogs work great, but take a long time to drill.
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