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#11
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Interesting that sometimes its the high end stuff that becomes obsolete.
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#12
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Interesting that sometimes its the high end stuff that becomesobsolete.
On 24/02/14 11:02, jbeattie wrote:
On Sunday, February 23, 2014 11:29:17 AM UTC-8, Sir Ridesalot wrote: Just looking at some old tubular wheels I have here and noticed something very interesting. My ancient hub that takes a thread on freewheel is still useful since freewheels are still available. However my vintage Uniglide Dura Ace cassette freehub is an orphan as that type of cassette is no longer made. Can't even change the freehub body as it's a proprietary unit to that particular hub. Then there was the weird Dura Ace stuff that had an unusual cable pull that isn't/wasn't compatible with anything else. Interesting that freewheels hubs are more useful today in that you can get a frewheel for one wheras you're SOL with the 7 speed Dura Ace cassette hub. Unless you want to go to all of the trouble of grinding the large tab on modern cassette cogs down to the size to fit the older spline. That's the thing with friction shifters too. You can use just about any cassette or freewheel with friction shifters if something goes wrong. With the Shimano Brifters if something goes wrong you're SOL for repairing them and need to buy new ones even if it's just the right one that needs repairing. More complicated parts are not neccessarily better if they can't be repaired by the home mechanic or if you can't get new cogs for them. Cheers The 7 speed Dura Ace was great because it was all stack-em-up cogs. You could build whatever configuration you wanted. You can also flip them over, so your cogs may still have some life left in them. You can still buy a conversion freehub body if you can find one, along with the special tool -- and some spacers. Or maybe you could buy some NOS cogs for a lot of money. Or you could do like me and go out and buy an Ultegra hub (or some other suitable hub) and re-build the wheel. No big deal and within the abilities of a home mechanic. Yes, freewheels are easier to find, unless you bought French hubs. But, if you have an old 5 speed British threaded hub, you can get a POS freewheel for $10 USD! http://www.universalcycles.com/shopp...s.php?id=44102 Makes me wonder why cassettes are so expensive. This is all academic to me, though, since I switched over to cassette hubs a zillion years ago and never looked back. I also dumped my tubulars, except for my old track wheels (ancient NR high flange and Ergal rims, tied and soldered). I stopped breaking rear axles with my first cassette rear hub, and have never broken one since. I often wonder why some parts cost as much as they do. For a cassette, you should have a set of spacers already, so the cogs could be sold with the intent of reusing the old spacers that don't wear. Some stamped steel rings shouldn't cost as much as they do from the big name manufacturers. I'd really like a 10s, 11-20 cassette. At the moment I think it's a no can do. Genuine Campy chainrings cost a packet compared to third party products. The last third party ones I bought were way cheaper, but lack the steel pins and shaped teeth to promote faster shifting. I filed down 2 teeth and the shifting has improved substantially. Why they couldn't have a few steel rivets and modified teeth as well, I don't know. Patents? Shouldn't be to hard to work around ;-) -- JS |
#13
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Interesting that sometimes its the high end stuff that becomes obsolete.
On Sunday, February 23, 2014 7:18:15 PM UTC-5, wrote:
Falcon 5 weighs 564 GRAMS http://www.jensonusa.com/!XweHjQ7Gai...FZLm7AodN3sAhg PASS THE x3 iiiiiiiii pass the STEPFORD WIVES |
#14
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Interesting that sometimes its the high end stuff that becomes obsolete.
Shouldn't be to hard to work around ;-) qqqqqqqqqqqqqqq been awhile since last fitting cogs around but hadaftermarket spacers then finding Shimano left nobs on the original spacers if filed off then cogs fit. On one or more spacers. https://www.google.com/#q=fitting+co...o+hubs&spell=1 |
#15
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Interesting that sometimes its the high end stuff that becomes obsolete.
On Sunday, February 23, 2014 7:18:23 PM UTC-5, James wrote:
Genuine Campy chainrings cost a packet compared to third party products. The last third party ones I bought were way cheaper, but lack the steel pins and shaped teeth to promote faster shifting. I filed down 2 teeth and the shifting has improved substantially. I've filed the side edges of old-design freewheel cogs in ways that seemed to improve the shifting significantly. But on another type of filing: James, IIRC you said you rehabbed some worn freewheel cogs, filing the teeth so they no longer caused the chain to jump. How has that worked out? Are they still running well? - Frank Krygowski |
#16
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Interesting that sometimes its the high end stuff that becomesobsolete.
On 24/02/14 11:40, Frank Krygowski wrote:
On Sunday, February 23, 2014 7:18:23 PM UTC-5, James wrote: Genuine Campy chainrings cost a packet compared to third party products. The last third party ones I bought were way cheaper, but lack the steel pins and shaped teeth to promote faster shifting. I filed down 2 teeth and the shifting has improved substantially. I've filed the side edges of old-design freewheel cogs in ways that seemed to improve the shifting significantly. But on another type of filing: James, IIRC you said you rehabbed some worn freewheel cogs, filing the teeth so they no longer caused the chain to jump. How has that worked out? Are they still running well? They ran well for the rest of the life of the chains I was using, but since retired. I have another chain slippage problem now. The current cassette did about 2000km with a brand new chain that was only oiled, until I took it off, cleaned everything and put on another brand new chain after dipping it into a hot wax/oil bath. The ******* skips! After now doing 5355km (3355km with the waxed chain) it still skips, and the new chain is only as long as the chain that had done 2000km. That is, the first chain and second hanging from a nail in my garage, appear to be as near as damn it is to swearing the same length. It seems the cassette has worn now faster than the chains, and probably won't like either of them. I have reapplied the wax/oil treatment a couple of times, and run a little light oil at times when it's sounded dry and I haven't had time to heat wax, etc. Perhaps I need to go back to running one chain on a cassette and using a wax/oil hot bath for lube? Perhaps the cassette teeth are not robust enough on 10s when the chain is kept in such good condition? It's not skipping once I get up to speed, only from a standing start with heavy acceleration. And no, I'm certain it's not frame flex causing gear changes. -- JS |
#17
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Interesting that sometimes its the high end stuff that becomes obsolete.
? CHAINs and casettes break in together...cassette wear very difficult to spot. Low diameter/sharp chain turn/less cog surface on smaller cogs.
try using water as lube for a few snap starts |
#18
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Interesting that sometimes its the high end stuff that becomesobsolete.
On 2/23/2014 12:50 PM, AMuzi wrote:
I'm admittedly a luddite in some regards but I haven't bought a nail since the first day I saw a drywall screw. (p.s. all my cars have multiple carburetors or multiple throat. Rebuild every 10 years or so, no complaints. After the Chinese do their EMP thing I won't have anywhere to go but my car will run.) Seriously? No electronic /ignition/, just points and the coil? Most cars haven't been EMP-robust since something like the mid-80s, I think. -Mark J. "Not really a survivalist, but I play one on TV" |
#19
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Interesting that sometimes its the high end stuff that becomesobsolete.
On 2/23/2014 1:16 PM, davethedave wrote:
On Sun, 23 Feb 2014 12:58:41 -0800, Frank Krygowski wrote: On Sunday, February 23, 2014 3:28:24 PM UTC-5, wrote: You can still buy regular manual nails. And nail them swinging a 16, 20, 24, 28 ounce hammer. Or you can buy an airgun and nail like 100% of the house builders do. I do not know if modern airguns use the same coil of nails the airguns from 20 years ago used. Maybe airguns change the nails they accept over the years and old and new airguns do not use the same nail coils. But as I said, 100% of the houses in the USA or Europe are nailed together using airguns. Maybe in Africa they are swinging manual hammers and using nails you pound in. Maybe you should go to Africa. You'd fit in better there. If I were going to build a new house, I might borrow an airgun plus a compressor to speed up the framing. But if I just want to add a closet, or install some finishing trim, or even build a backyard shed, I'm going to use a hammer. The hammer is much less expensive, much more versatile, and unlike the nail gun I've used, it's reliable as ... well, as a hammer. I have a hammer. It's reliability is astounding. It nailed **** together for my great-grandfather, my grandfather, my father and me. My son will learn to use it and eventually teach his daughter etc. ad infinitum. How long does a nail gun last? And why the hell are we talking about nail guns? I thought he said rail gun. Necessary for when the BEMs come and they neutralize all the gunpowder on the planet. http://www.doityourselfgadgets.com/2...e-railgun.html -Mark J. |
#20
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Interesting that sometimes its the high end stuff that becomes obsolete.
On Sun, 23 Feb 2014 12:58:41 -0800 (PST), Frank Krygowski
wrote: On Sunday, February 23, 2014 3:28:24 PM UTC-5, wrote: You can still buy regular manual nails. And nail them swinging a 16, 20, 24, 28 ounce hammer. Or you can buy an airgun and nail like 100% of the house builders do. I do not know if modern airguns use the same coil of nails the airguns from 20 years ago used. Maybe airguns change the nails they accept over the years and old and new airguns do not use the same nail coils. But as I said, 100% of the houses in the USA or Europe are nailed together using airguns. Maybe in Africa they are swinging manual hammers and using nails you pound in. Maybe you should go to Africa. You'd fit in better there. If I were going to build a new house, I might borrow an airgun plus a compressor to speed up the framing. But if I just want to add a closet, or install some finishing trim, or even build a backyard shed, I'm going to use a hammer. The hammer is much less expensive, much more versatile, and unlike the nail gun I've used, it's reliable as ... well, as a hammer. - Frank Krygowski Safety Frank, Safety. The Web says that some 42,000 people require emergency medical treatment for nail gun injuries annually. -- Cheers, John B. |
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