#61
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new chain, slack
On 1/2/2018 8:37 PM, Emanuel Berg wrote:
Frank Krygowski wrote: I check vertical movement at the crank position where the chain is tightest. I don't think the measurement is critical, as long as there's a little slack - say at least a centimeter. Yes, but is there a tool to do that? I mean to to *only* that... not a ruler. Well, not to do *only* that. I use the same took to scratch my elbow when it itches. Also, to turn pages in a book. IOW, why would you need a special tool? -- - Frank Krygowski |
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#62
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new chain, slack
Frank Krygowski wrote:
Well, not to do *only* that. I use the same took to scratch my elbow when it itches. Also, to turn pages in a book. IOW, why would you need a special tool? "You can't control what you can't measure."? But of course, no one "needs" any of this... just a bunch of machinery and scrap -- underground experts united http://user.it.uu.se/~embe8573 |
#63
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new chain, slack
On Tuesday, January 2, 2018 at 10:21:26 PM UTC-5, Frank Krygowski wrote:
On 1/2/2018 8:37 PM, Emanuel Berg wrote: Frank Krygowski wrote: I check vertical movement at the crank position where the chain is tightest. I don't think the measurement is critical, as long as there's a little slack - say at least a centimeter. Yes, but is there a tool to do that? I mean to to *only* that... not a ruler. Well, not to do *only* that. I use the same took to scratch my elbow when it itches. Also, to turn pages in a book. IOW, why would you need a special tool? -- - Frank Krygowski The OP is trolling - yet again. Cheers |
#64
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new chain, slack
Sir Ridesalot wrote:
The OP is trolling - yet again. How are restrictions these days, are bikes allowed in the mental institution? -- underground experts united http://user.it.uu.se/~embe8573 |
#65
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new chain, slack
On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote:
Frank Krygowski wrote: If you mean a tool to check the wear of a chain, yes there are several varieties. No, I mean a tool to check how tightly the chain is mounted on the bike, which I suppose is a function of chain wear to some degree but even more so the distance between sprocket and chainring, i.e. how far the rear wheel is pulled back? I use the Mk. 1 Finger. And the method of quantification could be the possible vertical movement of the chain at its loosest? Exactly! Finger the chain upwards. If there is too much slack tighten. If it's too taught loosen it. So if there is anyone out there who can tell me how to tighten the chain on a bike with no adjustment I would be grateful. 34 front 23 rear on an Alfine 11. 1/2 link tighter would be nice. -- davethedave |
#66
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new chain, slack
On 1/3/2018 3:08 PM, dave wrote:
On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote: Frank Krygowski wrote: If you mean a tool to check the wear of a chain, yes there are several varieties. No, I mean a tool to check how tightly the chain is mounted on the bike, which I suppose is a function of chain wear to some degree but even more so the distance between sprocket and chainring, i.e. how far the rear wheel is pulled back? I use the Mk. 1 Finger. And the method of quantification could be the possible vertical movement of the chain at its loosest? Exactly! Finger the chain upwards. If there is too much slack tighten. If it's too taught loosen it. So if there is anyone out there who can tell me how to tighten the chain on a bike with no adjustment I would be grateful. 34 front 23 rear on an Alfine 11. 1/2 link tighter would be nice. Why didn't you use a half link then? On some single-point ends, we remove just a slight amount (less than 0.5mm) from the face with a rotary air file. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#67
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new chain, slack
On 1/3/2018 4:57 PM, AMuzi wrote:
On 1/3/2018 3:08 PM, dave wrote: On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote: Frank Krygowski wrote: If you mean a tool to check the wear of a chain, yes there are several varieties. No, I mean a tool to check how tightly the chain is mounted on the bike, which I suppose is a function of chain wear to some degree but even more so the distance between sprocket and chainring, i.e. how far the rear wheel is pulled back? I use the Mk. 1 Finger. And the method of quantification could be the possible vertical movement of the chain at its loosest? Exactly! Finger the chain upwards. If there is too much slack tighten. If it's too taught loosen it. So if there is anyone out there who can tell me how to tighten the chain on a bike with no adjustment I would be grateful. 34 front 23 rear on an Alfine 11. 1/2 link tighter would be nice. Why didn't you use a half link then? I'm seeing marketing opportunities here. For Emanuel, a special iFinger tool, bluetooth connected to one's phone, using super GPS to tell how far the single speed chain is rising when force is applied. No more by guess and by golly, by golly! And sure, half links sound useful, but why stop there? By choosing between the half link, the one-third link, the one-quarter link, etc. a non-derailleur cyclist could finally get his chain tension perfectly right. Just the thing to show off at the coffee shop! And software! We have programmers here who could write the iFinger app to help select just the right combination of non-integer links. We'll make millions of dollars! ... or, well, maybe tens of dollars. Or maybe ones of dollars. -- - Frank Krygowski |
#68
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new chain, slack
Frank Krygowski wrote:
I'm seeing marketing opportunities here. For Emanuel, a special iFinger tool, bluetooth connected to one's phone, using super GPS to tell how far the single speed chain is rising when force is applied. No more by guess and by golly, by golly! Well, I don't have either smartphone, Bluetooth, or GPS. Do you, since you mention them? The tool I imagined was a sort of carpentier only the other way around, so the chain movement (play) will push two bars apart from each other - only problem is, how would one fixate it? And if one could, one might as well fixate a ruler and use that! Perhaps one could make a small foot for a ruler and simply have it stand vertically from the floor, next to the bike? A big ruler, like they once had in schools. But fear not, if I ever build one, I'll publish a photo here... And software! We have programmers here who could write the iFinger app DIY Frank Apps are written in Java (from 1995), while I write Lisp (1958) and C (1972) on my Raspbian box, Raspbian being a Debian fork, Debian a Linux distribution, and Linux an implementation of Unix from 1969. -- underground experts united http://user.it.uu.se/~embe8573 |
#69
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new chain, slack
I wrote:
and Linux an implementation of Unix from 1969. Ambiguous sentence. Unix (or UNIX) is from 1969, Linux is from 1991. The GNU project, which is as much UNIX as Linux - more in some ways - is from 1983. -- underground experts united http://user.it.uu.se/~embe8573 |
#70
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new chain, slack
On 1/3/2018 4:38 PM, Frank Krygowski wrote:
On 1/3/2018 4:57 PM, AMuzi wrote: On 1/3/2018 3:08 PM, dave wrote: On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote: Frank Krygowski wrote: If you mean a tool to check the wear of a chain, yes there are several varieties. No, I mean a tool to check how tightly the chain is mounted on the bike, which I suppose is a function of chain wear to some degree but even more so the distance between sprocket and chainring, i.e. how far the rear wheel is pulled back? I use the Mk. 1 Finger. And the method of quantification could be the possible vertical movement of the chain at its loosest? Exactly! Finger the chain upwards. If there is too much slack tighten. If it's too taught loosen it. So if there is anyone out there who can tell me how to tighten the chain on a bike with no adjustment I would be grateful. 34 front 23 rear on an Alfine 11. 1/2 link tighter would be nice. Why didn't you use a half link then? I'm seeing marketing opportunities here. For Emanuel, a special iFinger tool, bluetooth connected to one's phone, using super GPS to tell how far the single speed chain is rising when force is applied. No more by guess and by golly, by golly! And sure, half links sound useful, but why stop there? By choosing between the half link, the one-third link, the one-quarter link, etc. a non-derailleur cyclist could finally get his chain tension perfectly right. Just the thing to show off at the coffee shop! And software! We have programmers here who could write the iFinger app to help select just the right combination of non-integer links. We'll make millions of dollars! ... or, well, maybe tens of dollars. Or maybe ones of dollars. But half links are an actual thing, 100+ years old, cheap, available anywhere. More readily found than a 35t chainring! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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