Cog and hub thread mismatch?
10-03-15 | 08:12 PM
#1
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From: Philadelphia, PA
Cog and hub thread mismatch?
I bought a new EAI 17t cog recently for my Kilo TT Stripper.
Dude at my LBS said the threads were a different format. Got a second opinion from another guy working there and we installed it anyway after me being all like "come on you can make it work" (could not return the cog).
Basically they said it was cool but had hesitations due to the threading not being exact for my hub.
Should I be worried? I mean it's on there tight (with a dura ace lockring) and I have no desire to change my cog as I love riding at 48/17. Same ratio I've been riding for almost a decade and have zero plans to change.
Anyway, I'm not going to die or anything right? Slight mismatch in threading but the jawn is on there, and tight. Should be OK right?
Dude at my LBS said the threads were a different format. Got a second opinion from another guy working there and we installed it anyway after me being all like "come on you can make it work" (could not return the cog).
Basically they said it was cool but had hesitations due to the threading not being exact for my hub.
Should I be worried? I mean it's on there tight (with a dura ace lockring) and I have no desire to change my cog as I love riding at 48/17. Same ratio I've been riding for almost a decade and have zero plans to change.
Anyway, I'm not going to die or anything right? Slight mismatch in threading but the jawn is on there, and tight. Should be OK right?
10-03-15 | 08:26 PM
#2
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From: Ciudad de Vacas, Tejas
Bikes: 34 frames + 80 wheels
10-03-15 | 08:50 PM
#3
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From: Eugene, Oregon, USA
It is on there now. So, I wouldn't worry about until you're ready to replace it.
See freewheel sizes.
Traditional Thread-on Freewheels
It sounds odd if the parts are "new". But, apparently with vintage bikes, Italian, US, British, and ISO freewheels are generally interchangeable, but some may be tighter than others.
FRENCH IS NOT.
See freewheel sizes.
Traditional Thread-on Freewheels
It sounds odd if the parts are "new". But, apparently with vintage bikes, Italian, US, British, and ISO freewheels are generally interchangeable, but some may be tighter than others.
FRENCH IS NOT.
10-03-15 | 09:15 PM
#4
Veteran Racer
Joined: Jul 2009
Posts: 11,854
Likes: 913
From: Ciudad de Vacas, Tejas
Bikes: 34 frames + 80 wheels
It is on there now. So, I wouldn't worry about until you're ready to replace it.
See freewheel sizes.
Traditional Thread-on Freewheels
It sounds odd if the parts are "new". But, apparently with vintage bikes, Italian, US, British, and ISO freewheels are generally interchangeable, but some may be tighter than others.
FRENCH IS NOT.
See freewheel sizes.
Traditional Thread-on Freewheels
It sounds odd if the parts are "new". But, apparently with vintage bikes, Italian, US, British, and ISO freewheels are generally interchangeable, but some may be tighter than others.
FRENCH IS NOT.
10-03-15 | 09:20 PM
#5
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From: Philadelphia, PA
Here is the exact cog I bought (in 17t):
Euro Asia Imports Deluxe Steel Track Cog 1 8" Single Speed EAI Made in USA | eBay
Bike is a Kilo Stripper, stock wheel set.
Anyway, the thing is on there but was the bike store dude just full of ****? Literally he was all "this wont work" and then another dude working there was like sure it will and it's installed now.
10-03-15 | 10:29 PM
#8
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Joined: Jun 2008
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From: Philadelphia, PA
It was funny though. The first dude was all "yeah, this cog won't work, blah blah blah threading, blah blah blah" and then the next guy who looked at it (who had much more of an aura of a man who knows what he's doing) was like "no problem, it'll work". Haha.
Last edited by bike manhattan; 10-03-15 at 10:34 PM.
10-03-15 | 10:51 PM
#9
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Joined: Sep 2009
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From: PHL
Bikes: Litespeed Catalyst, IRO Rob Roy, All City Big Block
Hmm, never been to that one. Sounds like the guy just made a rookie mistake, which can happen anywhere. I used to go to Bicycle Revolutions for a lot of stuff. The owner there is a good guy and pretty knowledgeable. I had a set of wheels built by him several years ago that I'm still riding.
10-04-15 | 11:06 AM
#10
- Soli Deo Gloria -
Joined: Aug 2015
Posts: 14,779
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From: Northwest Georgia
Bikes: 2018 Rodriguez Custom Fixed Gear, 2017 Niner RLT 9 RDO, 2015 Bianchi Pista, 2002 Fuji Robaix
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