Track cog on multi-speed freewheel hub.
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Track cog on multi-speed freewheel hub.
I hear this can be done without re-dishing the wheel if the dropouts are spaced at 126mm. Can anyone give me the details of what spacers might be involved on the chainring and/ or hub?
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If you have to respace the hub...you have to redish the wheel.
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I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC
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You don't need to respace the hub. I just thought you might need to space the cog out along the threads.
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There is a device to space the cog but it runs something like $40 and offers no remedy for the cog spinning off. What is your reason for trying this? Are you trying to cheaply try out a fixed gear? Maybe I'm unclear on what you are asking...just threading on a fixed cog will not bring you close to the 42mm chainline.
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you can use a lockring from a BB, but its not counter-threaded... so you'll need to use some thread-locker or jb weld to make sure it doesn't back out on ya !!!!! lol
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new hubs really arent that expensive
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For the yellow bike I used a product from Gusset called a 1-er. It comes with 16 and 18T cogs. Got it from Pricepoint on sale 20 bucks. It's two machined spacers and a cog fits right on freewheel hub and gives a reasonable "5th" gear straight chainline.
A lot of folks use cassette spacers to get the chainline.
The above would be for a singlespeed NOT a fixed gear. I was confused as to which what you were talking about.
I guess you knew that though.
A lot of folks use cassette spacers to get the chainline.
The above would be for a singlespeed NOT a fixed gear. I was confused as to which what you were talking about.
I guess you knew that though.
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Within limits (frame contact), you can put spacers on the inside of a normal double chainring spider and end up with decent chainline. Using the other chainring as a spacer = more ghetto points. Smaller chainring helps for obvious reasons of geometry. You're still building a suicide hub, of course, but that's your problem, not mine.
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Sorry, I should have been more clear. I am looking to try out fixed using a unmodified multi speed freewheel hub. Basically I want to use whatever sleezy old 10 speed I can find without putting much money into it. I've been told in a previous post (by Sheldon Brown no less) that it is possible to do this if the dropouts are spaced at 126mm- that is if I understood his reply correctly. I know that it is possible to use spacers to space the chain ring inwards. I also imagine it is possible to space the fixed cog outwards along the threads a bit using a cassette spacer or whatever. What I don't know (I have no experience with fixed) is how you would secure that cog. Is this what is called a 'suicide hub'? Will I endanger my life just to avoid buying a proper wheel? I'm curious.
Thanks to all for the advice.
Thanks to all for the advice.
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No, you will not endanger your life. Just keep on your brakes. Also you can respace the rear wheel without redishing it if you are just "trying it out." The rim will not be centered in the rear but who cares for a test run. Spacers are under a buck.
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I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC
I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC
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people riding bikes like the one you are describing are much like three-legged antelope. Not long with the herd.
Seriously, just because someone famous tells you something works, doesn't mean you have to believe them. Simple physics dictates that you're making your wheel into a giant lever made to turn the cog off the hub. Simple math says that if you buy a track wheel and you don't like it, you can sell it to some sucker on the street for at least close to what you paid for it.
Don't be a cheapass when your life is on the line.
Seriously, just because someone famous tells you something works, doesn't mean you have to believe them. Simple physics dictates that you're making your wheel into a giant lever made to turn the cog off the hub. Simple math says that if you buy a track wheel and you don't like it, you can sell it to some sucker on the street for at least close to what you paid for it.
Don't be a cheapass when your life is on the line.
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Philosophy and feelings don't change the laws of physics
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