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#21
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Coaster Brake Failure
On 2019-02-25 10:12, Ralph Barone wrote:
Joerg wrote: On 2019-02-25 07:29, Ralph Barone wrote: AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? They must have improved it. In German there is the inofficial word "verschlimmbessern". It sums up the action of "Here we have a working design but let's optimize it anyhow" and then it all goes to pots. A very common scenario in software design. In Yiddish, it's "farpotchket", which loosely translates to "broken during the act of fixing it". That might have the same roots as the German "verpfuscht" or "verpatzt". When someone tries to design or fix technical stuff and either has no clue how to go about it, is in a hurry or doesn't really have the budget for it. -- Regards, Joerg http://www.analogconsultants.com/ |
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#22
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Coaster Brake Failure
On 2019-02-25 11:42, Tosspot wrote:
On 2/25/19 5:06 PM, Joerg wrote: On 2019-02-25 07:29, Ralph Barone wrote: AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? They must have improved it. In German there is the inofficial word "verschlimmbessern". It sums up the action of "Here we have a working design but let's optimize it anyhow" and then it all goes to pots. A very common scenario in software design. https://www.youtube.com/watch?v=gp_D8r-2hwk Sometimes those things happen for reasons Tom mentioned. People using library modules that others have written, assuming everything in those we be just fine. And then things aren't. This is one of the reasons why I prefer gear with the least amount of electronics and software in there and, for example, will never be caught with electronic shifters on a bicycle. I am saying this as an engineer who designs electroncics. -- Regards, Joerg http://www.analogconsultants.com/ |
#23
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Coaster Brake Failure
On Wednesday, February 27, 2019 at 8:09:00 AM UTC-8, Joerg wrote:
On 2019-02-25 11:42, Tosspot wrote: On 2/25/19 5:06 PM, Joerg wrote: On 2019-02-25 07:29, Ralph Barone wrote: AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? They must have improved it. In German there is the inofficial word "verschlimmbessern". It sums up the action of "Here we have a working design but let's optimize it anyhow" and then it all goes to pots. A very common scenario in software design. https://www.youtube.com/watch?v=gp_D8r-2hwk Sometimes those things happen for reasons Tom mentioned. People using library modules that others have written, assuming everything in those we be just fine. And then things aren't. This is one of the reasons why I prefer gear with the least amount of electronics and software in there and, for example, will never be caught with electronic shifters on a bicycle. I am saying this as an engineer who designs electroncics. I have Ultegra Di2 on my super rain bike Synapse. Works great except that I broke the rear derailleur wire being careless cleaning the bike in a wash stand. I soldered the broken wire and shrink-wrapped it. I also bought a new wire, but the repair seems to be working fine. The problem with Di2 -- or maybe just 11sp -- is that chain wear beyond .5% but below .75% really degrades shifting. Down-shifts hang up. I threw on a new chain last night, and now it shifts great. I didn't think I had that much mileage on the chain, but I guess I did. I bought a couple $19 11sp 105 chains from Western Bikeworks for back-ups. The great thing about Western is that if you buy $50, it's free shipping, but if you pick up in store, its $5 off. I can ride to the store on my way home from work and save $5, although not today because it snowed, and I slacked-off and car-pooled with my son. -- Jay Beattie. |
#24
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Coaster Brake Failure
On 2/26/2019 10:57 AM, AMuzi wrote:
On 2/26/2019 12:09 AM, Tosspot wrote: On 2/26/19 12:28 AM, John B. Slocomb wrote: On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news.Â* We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". It's brakes and grease, I will never surrender my opinion this is a good thing[TM].Â* How do they work? They've always, by design, had greased end bearings and bendix ramps. Classic bronze-on-steel braking or modern steel-steel pushes the lubricant aside with no issues. Shimano Roller Brake hubs also need greased brake surfaces. And of course, lots of motorcycles use wet clutches. Pretty similar physics. -- - Frank Krygowski |
#25
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Coaster Brake Failure
On 2019-02-27 08:36, jbeattie wrote:
On Wednesday, February 27, 2019 at 8:09:00 AM UTC-8, Joerg wrote: On 2019-02-25 11:42, Tosspot wrote: On 2/25/19 5:06 PM, Joerg wrote: On 2019-02-25 07:29, Ralph Barone wrote: AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? They must have improved it. In German there is the inofficial word "verschlimmbessern". It sums up the action of "Here we have a working design but let's optimize it anyhow" and then it all goes to pots. A very common scenario in software design. https://www.youtube.com/watch?v=gp_D8r-2hwk Sometimes those things happen for reasons Tom mentioned. People using library modules that others have written, assuming everything in those we be just fine. And then things aren't. This is one of the reasons why I prefer gear with the least amount of electronics and software in there and, for example, will never be caught with electronic shifters on a bicycle. I am saying this as an engineer who designs electroncics. I have Ultegra Di2 on my super rain bike Synapse. Works great except that I broke the rear derailleur wire being careless cleaning the bike in a wash stand. I soldered the broken wire and shrink-wrapped it. I also bought a new wire, but the repair seems to be working fine. On the road bike it would probably work for me, not so much on the MTB. There I shift the front all the time, hundreds of times per ride and the rear as well, skipping across lots of gears on each shift. From what I heard that really depletes the battery. The problem with Di2 -- or maybe just 11sp -- is that chain wear beyond .5% but below .75% really degrades shifting. Down-shifts hang up. My chains spend most of their life in that range. They quickly go to 0.6% or so. On the road bike they tend to stay there and it's the rollers that wear out. So I have to swap the chain even though stretch is still 0.6% but the rollers are shot. ... I threw on a new chain last night, and now it shifts great. I didn't think I had that much mileage on the chain, but I guess I did. I bought a couple $19 11sp 105 chains from Western Bikeworks for back-ups. I just stay with friction shifters on the road bike, Deore M591 on the MTB and Altus on the beater bike. My motto for vehicles is "If it ain't broken, don't try to fix it". The great thing about Western is that if you buy $50, it's free shipping, but if you pick up in store, its $5 off. I can ride to the store on my way home from work and save $5, although not today because it snowed, and I slacked-off and car-pooled with my son. We don't have many of those in this area. Though I have to check Sacramento because I ride into that city on my road bike more and more. Mainly on account of the great brewpubs and because there is a great bike path leading into the city. -- Regards, Joerg http://www.analogconsultants.com/ |
#26
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Coaster Brake Failure
On 2/27/2019 10:36 AM, jbeattie wrote:
On Wednesday, February 27, 2019 at 8:09:00 AM UTC-8, Joerg wrote: On 2019-02-25 11:42, Tosspot wrote: On 2/25/19 5:06 PM, Joerg wrote: On 2019-02-25 07:29, Ralph Barone wrote: AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? They must have improved it. In German there is the inofficial word "verschlimmbessern". It sums up the action of "Here we have a working design but let's optimize it anyhow" and then it all goes to pots. A very common scenario in software design. https://www.youtube.com/watch?v=gp_D8r-2hwk Sometimes those things happen for reasons Tom mentioned. People using library modules that others have written, assuming everything in those we be just fine. And then things aren't. This is one of the reasons why I prefer gear with the least amount of electronics and software in there and, for example, will never be caught with electronic shifters on a bicycle. I am saying this as an engineer who designs electroncics. I have Ultegra Di2 on my super rain bike Synapse. Works great except that I broke the rear derailleur wire being careless cleaning the bike in a wash stand. I soldered the broken wire and shrink-wrapped it. I also bought a new wire, but the repair seems to be working fine. The problem with Di2 -- or maybe just 11sp -- is that chain wear beyond .5% but below .75% really degrades shifting. Down-shifts hang up. I threw on a new chain last night, and now it shifts great. I didn't think I had that much mileage on the chain, but I guess I did. I bought a couple $19 11sp 105 chains from Western Bikeworks for back-ups. The great thing about Western is that if you buy $50, it's free shipping, but if you pick up in store, its $5 off. I can ride to the store on my way home from work and save $5, although not today because it snowed, and I slacked-off and car-pooled with my son. -- Jay Beattie. SRAM says their new 12 system has bigger chain rollers & rivets. For which you need a new chain tool. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#27
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Coaster Brake Failure
On 2/27/19 5:09 PM, Joerg wrote:
On 2019-02-25 11:42, Tosspot wrote: On 2/25/19 5:06 PM, Joerg wrote: On 2019-02-25 07:29, Ralph Barone wrote: AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? They must have improved it. In German there is the inofficial word "verschlimmbessern". It sums up the action of "Here we have a working design but let's optimize it anyhow" and then it all goes to pots. A very common scenario in software design. https://www.youtube.com/watch?v=gp_D8r-2hwk Sometimes those things happen for reasons Tom mentioned. People using library modules that others have written, assuming everything in those we be just fine. And then things aren't. https://www.youtube.com/watch?v=kYUrqdUyEpI This is one of the reasons why I prefer gear with the least amount of electronics and software in there and, for example, will never be caught with electronic shifters on a bicycle. I am saying this as an engineer who designs electroncics. |
#28
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Coaster Brake Failure
On Wednesday, February 27, 2019 at 11:17:07 AM UTC-8, AMuzi wrote:
On 2/27/2019 10:36 AM, jbeattie wrote: On Wednesday, February 27, 2019 at 8:09:00 AM UTC-8, Joerg wrote: On 2019-02-25 11:42, Tosspot wrote: On 2/25/19 5:06 PM, Joerg wrote: On 2019-02-25 07:29, Ralph Barone wrote: AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? They must have improved it. In German there is the inofficial word "verschlimmbessern". It sums up the action of "Here we have a working design but let's optimize it anyhow" and then it all goes to pots. A very common scenario in software design. https://www.youtube.com/watch?v=gp_D8r-2hwk Sometimes those things happen for reasons Tom mentioned. People using library modules that others have written, assuming everything in those we be just fine. And then things aren't. This is one of the reasons why I prefer gear with the least amount of electronics and software in there and, for example, will never be caught with electronic shifters on a bicycle. I am saying this as an engineer who designs electroncics. I have Ultegra Di2 on my super rain bike Synapse. Works great except that I broke the rear derailleur wire being careless cleaning the bike in a wash stand. I soldered the broken wire and shrink-wrapped it. I also bought a new wire, but the repair seems to be working fine. The problem with Di2 -- or maybe just 11sp -- is that chain wear beyond .5% but below .75% really degrades shifting. Down-shifts hang up. I threw on a new chain last night, and now it shifts great. I didn't think I had that much mileage on the chain, but I guess I did. I bought a couple $19 11sp 105 chains from Western Bikeworks for back-ups. The great thing about Western is that if you buy $50, it's free shipping, but if you pick up in store, its $5 off. I can ride to the store on my way home from work and save $5, although not today because it snowed, and I slacked-off and car-pooled with my son. -- Jay Beattie. SRAM says their new 12 system has bigger chain rollers & rivets. For which you need a new chain tool. And for which they have a chain company. Tres convenient. I wonder how many of the chain manufacturers are going to follow them down that rabbit hole. If Shimano is true to form, it will wait a year and then announce its 12sp -- which will probably have a different chain format. I'm giving up chains and going with the Ceramic Speed cheese grater. https://www.youtube.com/watch?v=rgo-yEaXDzA -- Jay Beattie. |
#29
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Coaster Brake Failure
On 2/27/2019 3:08 PM, jbeattie wrote:
On Wednesday, February 27, 2019 at 11:17:07 AM UTC-8, AMuzi wrote: On 2/27/2019 10:36 AM, jbeattie wrote: On Wednesday, February 27, 2019 at 8:09:00 AM UTC-8, Joerg wrote: On 2019-02-25 11:42, Tosspot wrote: On 2/25/19 5:06 PM, Joerg wrote: On 2019-02-25 07:29, Ralph Barone wrote: AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? They must have improved it. In German there is the inofficial word "verschlimmbessern". It sums up the action of "Here we have a working design but let's optimize it anyhow" and then it all goes to pots. A very common scenario in software design. https://www.youtube.com/watch?v=gp_D8r-2hwk Sometimes those things happen for reasons Tom mentioned. People using library modules that others have written, assuming everything in those we be just fine. And then things aren't. This is one of the reasons why I prefer gear with the least amount of electronics and software in there and, for example, will never be caught with electronic shifters on a bicycle. I am saying this as an engineer who designs electroncics. I have Ultegra Di2 on my super rain bike Synapse. Works great except that I broke the rear derailleur wire being careless cleaning the bike in a wash stand. I soldered the broken wire and shrink-wrapped it. I also bought a new wire, but the repair seems to be working fine. The problem with Di2 -- or maybe just 11sp -- is that chain wear beyond .5% but below .75% really degrades shifting. Down-shifts hang up. I threw on a new chain last night, and now it shifts great. I didn't think I had that much mileage on the chain, but I guess I did. I bought a couple $19 11sp 105 chains from Western Bikeworks for back-ups. The great thing about Western is that if you buy $50, it's free shipping, but if you pick up in store, its $5 off. I can ride to the store on my way home from work and save $5, although not today because it snowed, and I slacked-off and car-pooled with my son. -- Jay Beattie. SRAM says their new 12 system has bigger chain rollers & rivets. For which you need a new chain tool. And for which they have a chain company. Tres convenient. I wonder how many of the chain manufacturers are going to follow them down that rabbit hole. Remember years ago when Shimano tried to get us to buy 10mm chain? -- - Frank Krygowski |
#30
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Coaster Brake Failure
On 26/2/19 7:06 pm, John B. Slocomb wrote:
On Tue, 26 Feb 2019 18:09:31 +1100, James wrote: On 26/2/19 5:09 pm, Tosspot wrote: On 2/26/19 12:28 AM, John B. Slocomb wrote: On Mon, 25 Feb 2019 20:39:48 +0100, Tosspot wrote: On 2/25/19 3:16 PM, AMuzi wrote: https://www.bicycleretailer.com/reca...nd-aftermarket Mysterious. How the hell did that happen in a design 100+ years old? It's fake news.Â* We all know that the old days were *far* superior to modern rim/disc brakes. Honestly, greasing brakes! Actually the old style single speed coaster brakes did have grease or oil in them. See https://www.sheldonbrown.com/coaster-brakes.html under "Lubrication". It's brakes and grease, I will never surrender my opinion this is a good thing[TM].Â* How do they work? I think most tractors have wet brakes. Mine does. They seem to work. Wet as in "water" or wet as in "oil"? They run in transmission oil. Sealed from the elements and oil cooled. -- JS |
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