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#31
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program to compute gears, with table
Sir Ridesalot wrote:
I did! I DID! After "web" I had also answered your qquestion with "...under bicycle chain widths and you'll seethat 5 speed, 7 speed, 9 speed, 10 speed and 11 speed chains are ALL different widths to cope with the narrower spacings between cogs and also the thinner cogs." Yes, I know. Thank you for that. -- underground experts united http://user.it.uu.se/~embe8573 |
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#32
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program to compute gears, with table
AMuzi wrote:
Surely you jest! There are variants within each format. Plus 12 speed now. Four chain models is not a shop inventory - it's nothing. No jesting! In the shop I go to regularly there are only two chains, both Shimano, one is fat (1s) and one is for casettes. The one for casettes, the "Shimano CN-HG40", is for 6, 7, and 8 sprocket casettes. -- underground experts united http://user.it.uu.se/~embe8573 |
#33
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program to compute gears, with table
AMuzi wrote:
There are variants within each format. OK, so how do you know then? Is it imprinted somewhere on the casette or do you measure it? If so, what results translate into what chains? -- underground experts united http://user.it.uu.se/~embe8573 |
#34
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program to compute gears, with table
Harris Brown Cyclery has a program
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#35
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program to compute gears, with table
On 2017-09-08 12:59, David Scheidt wrote:
In rec.bicycles.tech Joerg wrote: :On 2017-09-08 10:52, Emanuel Berg wrote: : Skip Montanaro wrote: : : * Why the 1.0 divisor when computing gear? : : As explained, otherwise it'll be integer : division. But I think that qualifies as a hack : (not an ugly hack tho) so there is no shame in : spotting it an "error" : : * You can skip the radius and use wheel : (diameter) directly in computing : the circumference. : : Right! : : * It never occurred to me to do this in Lisp. : I always just use an online calculator, like: : : http://www.gear-calculator.com/?GR=D...&SL=2.6&UN=KMH : : Let's agree there is no need to do it in Lisp. : Only a desire : :Why make things complicated? I do such stuff with spreadsheets. That's :what they were invented for. Part of every office software including :free ones. I rewrote his code in common lisp in less time than it takes excel to start. Wow, you must be able to type at hundreds of letter a second. Here, it takes less than 2sec for Excel to start. Mostly only a split second to open the file because I usually have it running nearly all the time. -- Regards, Joerg http://www.analogconsultants.com/ |
#36
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program to compute gears, with table
On 9/9/2017 1:10 PM, Emanuel Berg wrote:
AMuzi wrote: Surely you jest! There are variants within each format. Plus 12 speed now. Four chain models is not a shop inventory - it's nothing. No jesting! In the shop I go to regularly there are only two chains, both Shimano, one is fat (1s) and one is for casettes. The one for casettes, the "Shimano CN-HG40", is for 6, 7, and 8 sprocket casettes. No, it is not. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#37
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program to compute gears, with table
Joerg wrote:
Wow, you must be able to type at hundreds of letter a second. Here, it takes less than 2sec for Excel to start. Mostly only a split second to open the file because I usually have it running nearly all the time. But it is faster to feed data into a shell tool, hit RET and have the result outputted. And yes, programmers type very quickly indeed. On a general note, if you care about time (the perception thereof) you should throw the computer into a rock wall and be done with it. -- underground experts united http://user.it.uu.se/~embe8573 |
#38
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program to compute gears, with table
AMuzi wrote:
No jesting! In the shop I go to regularly there are only two chains, both Shimano, one is fat (1s) and one is for casettes. The one for casettes, the "Shimano CN-HG40", is for 6, 7, and 8 sprocket casettes. No, it is not. They say it is: För 6-, 7- och 8-delade kransar. [1] Might be incorrect, of course. [1] http://www.clasohlson.com/se/Cykelke...N-HG40/34-8914 -- underground experts united http://user.it.uu.se/~embe8573 |
#39
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program to compute gears, with table
On 9/9/2017 2:50 PM, Emanuel Berg wrote:
AMuzi wrote: No jesting! In the shop I go to regularly there are only two chains, both Shimano, one is fat (1s) and one is for casettes. The one for casettes, the "Shimano CN-HG40", is for 6, 7, and 8 sprocket casettes. No, it is not. They say it is: För 6-, 7- och 8-delade kransar. [1] Might be incorrect, of course. [1] http://www.clasohlson.com/se/Cykelke...N-HG40/34-8914 The guy who only stocks one model chain knows a lot more than the guy who made it? http://bike.shimano.com/content/saus...s/cn-hg40.html Shifts for crap on a six speed system. Six changers want classic chain with rivets sticking out the side, especially the fronts. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#40
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program to compute gears, with table
AMuzi wrote:
The guy who only stocks one model chain knows a lot more than the guy who made it? http://bike.shimano.com/content/saus...s/cn-hg40.html .... what do you mean? What I can see your link say the same: Cassette Compatibility 6/7/8-speed -- underground experts united http://user.it.uu.se/~embe8573 |
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