Conversions...
07-06-05, 09:01 PM
#1
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Conversions...
I know someone had a thread in here about converting a 3 speed hub to a fixed gear hub...does anyone know either where the thread went or how to actually do it? Sheldon Brown's site was not very great at giving instructions.
07-07-05, 10:27 AM
#2
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Originally Posted by IchbinJay
I know someone had a thread in here about converting a 3 speed hub to a fixed gear hub...does anyone know either where the thread went or how to actually do it? Sheldon Brown's site was not very great at giving instructions.
If you can't figure it out from these instructions, you probably don't have the necessary equipment and experience to do it.
Sheldon "Not A Trivial Job" Brown
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+---------------------------------------------------------------------+ | There are two times in a man's life when he should not speculate: | | when he can't afford it, and when he can. --Mark Twain | +---------------------------------------------------------------------+
07-07-05, 10:37 AM
#3
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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
07-08-05, 08:34 PM
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You might want to try sending Sheldon a PM or email. He's probably the best source of instructions for anything you're going to get.
07-08-05, 08:36 PM
#6
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Theres gotta be other people who've done it, right?
07-08-05, 08:41 PM
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Yea there are lots of other people doing it.A friend has the skinny on this.I'll get with him and post what he tells me---if fact I have several old sturmey archer hubs,so I'll rip one open and give it a try too---to be contuned----sam
07-08-05, 09:14 PM
#8
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Just be careful...I already toasted one of those hubs and didn't realize how much they're worth as 3 speeds. A new Shimano 3 speed goes for over $100 new. I don't know about SA but I'm sure they're still up there.
07-08-05, 09:17 PM
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Originally Posted by IchbinJay
You didn't answer my question.
I gave you all of the info I had on the topic you asked about, along with the best advice my judgement could offer.
I thought you might find it helpful.
Under the circumstances I've authorized the comptroller to refund your entire fee.
Sheldon "The Check's In The Mail" Brown
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+--------------------------------------------+ | Nothing is given so profusely as advice. | | - Francois, Duc de la Rouchefoucauld | +--------------------------------------------+
07-08-05, 09:23 PM
#10
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? I'm confused man. I mean, I read your article but I was even just looking for an easier way to make it a single speed fixed gear. Just some way to take out the clutch or something. I've been having a hard time cause I don't have a bench vise to open up the main chamber with, it's frozen pretty good. Maybe there's some other way to do it? I don't know?
07-12-05, 10:42 AM
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IchbinJay...
I don't think you get it. The instructions on the web site are absolutely complete, to any engineer or machinist. This job is very difficult and requires some significant tooling. I think as a minimum, you'd need a full size drill press with indexing table to do this right. It might be possible with a die grinder, after you'd blue it and laid it out, but I woudn't want to try it. It's going to require lots of hand filing too. Better to have a NC machine with carbide cutters.
Some activities in life require significant skills, tooling and training. That's why they don't do open heart surgery at your local 7-11 or Walmart. This is one of those tasks. The instructions are intentionally vague as a test of one's skills. To someone who has analysed 1000's of tech drawings, the sketches make sense.
Probably best to purchase your own hub... have you seen the stuff from IRO cycle? Their prices are pretty reasonable, and you will get a much higher quality fixed gear to boot (i.e. if you blow the tolerances on the 3 speed conversion, you will get a very noisy rattling fixed gear system...)
Good luck... Zip in Detroit.
I don't think you get it. The instructions on the web site are absolutely complete, to any engineer or machinist. This job is very difficult and requires some significant tooling. I think as a minimum, you'd need a full size drill press with indexing table to do this right. It might be possible with a die grinder, after you'd blue it and laid it out, but I woudn't want to try it. It's going to require lots of hand filing too. Better to have a NC machine with carbide cutters.
Some activities in life require significant skills, tooling and training. That's why they don't do open heart surgery at your local 7-11 or Walmart. This is one of those tasks. The instructions are intentionally vague as a test of one's skills. To someone who has analysed 1000's of tech drawings, the sketches make sense.
Probably best to purchase your own hub... have you seen the stuff from IRO cycle? Their prices are pretty reasonable, and you will get a much higher quality fixed gear to boot (i.e. if you blow the tolerances on the 3 speed conversion, you will get a very noisy rattling fixed gear system...)
Good luck... Zip in Detroit.
07-12-05, 09:58 PM
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Originally Posted by IchbinJay
Thanks buddy, I already have a track bike.
dude, basically, if you don't know what you're looking at, then don't to it. This tasks requires milling, something I doubt you've done, otherwise this would all make sense...
