View Poll Results: ETRTO--do you know what it is
Yes, I know
35
76.09%
No, I do not know-what is it?
8
17.39%
No, don't know, don't care
3
6.52%
Voters: 46. You may not vote on this poll
Etrto
10-01-20, 06:42 AM
#1
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Etrto
Do you know what ETRTO is? Hate to admit, but until a friend asked me a ? (don't want to give it away), I did not know. Had to research it. Never used it in the past, but think it's an improvement over the "old way". Tried to change title to all caps-if it doesn't appear all caps, sorry 'bout that. For those who may not know, but are interested: https://www.schwalbetires.com/sites/...ons/ETRTO.html
Last edited by freeranger; 10-01-20 at 08:37 AM.
10-01-20, 07:09 AM
#2
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You need another poll option: “Yes, I know and I don’t care.”
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10-01-20, 07:39 AM
#3
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OP: What is the point of this poll?
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10-01-20, 07:41 AM
#4
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What is it?
10-01-20, 07:54 AM
#5
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I suspect that most people who don't know what it is won't bother with the poll. So far the results are proving me right!
10-01-20, 08:40 AM
#6
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I know that it's basically, "the standard tire # measurement thingy" and that's good enough!
10-01-20, 08:47 AM
#7
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Yeah, why a poll? It's just a discussion point.
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10-01-20, 08:56 AM
#8
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If it's anything like tofu, I am not getting it anywhere near my mouth.
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10-01-20, 09:10 AM
#9
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You may not care but using ETRTO or ISO sizing makes a lot more sense than the common confusing system most people use. There are 6 different 26” sizes ranging from 559mm to 590mm. The ETRTO sizing system gets rid of all that confusion.
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10-01-20, 10:29 AM
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10-01-20, 10:41 AM
#12
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I knew that I had known it, but forgot it, but now I know it again until I forget again.
I am all for it. (Unless I forget.)
I am all for it. (Unless I forget.)
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10-01-20, 11:15 AM
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I understand. Not so much of an issue with 700C wheels.
10-01-20, 11:21 AM
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It is if you have to explain that there isn’t a difference between the rims used for 700C tires and 29er tires all the time.
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10-01-20, 11:34 AM
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I will admit to being amused watching how uncomfortable the guys at the LBS get when someone asks them if 700c and 29'er tires are interchangeable.
10-01-20, 11:45 AM
#17
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ETRTO has been incorporated into and superseded by ISO-5775, which with the similar JIS D-9421 standard, makes it truly international. It's also easier to say, "What's the ISO size?" than "What's the Et Ree Toe size?" Or is it "Etter Too?"
10-01-20, 12:26 PM
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I do not think it means what you think it means.
John
John
10-01-20, 02:50 PM
#19
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You forgot 597. British 26x1-1/4 or Schwinn 26x1-3/8.
10-01-20, 04:59 PM
#20
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A race bike in any era is a highly personal choice that at its "best" balances the requirements of fit, weight, handling, durability and cost tempered by the willingness to toss it and oneself down the pavement at considerable speed. ~Bandera
A race bike in any era is a highly personal choice that at its "best" balances the requirements of fit, weight, handling, durability and cost tempered by the willingness to toss it and oneself down the pavement at considerable speed. ~Bandera
10-01-20, 05:53 PM
#21
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10-01-20, 08:18 PM
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When you own bikes that take uncommon variations of common tire size designations you have to know ERTO BSDs and train young LBS employees that the 26" tire they'd like to sell you will not fit your bike. They have no clue when you use terms like EA3 or S7
10-01-20, 09:07 PM
#23
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The three bikes that I ride all have 20" front and 26" rear wheels. Guess exactly what sizes they are? S-7 is not a correct answer. Nor is 451.
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Last edited by JanMM; 10-02-20 at 06:06 AM.
10-01-20, 09:27 PM
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Pity the poor shop monkeys, especially now that the "standard" MTB wheel size is 584, which is 650B on road bikes (same old French system as 700C.) The industry, in its infinite wisdom, looked at all of the confusion and wailing and gnashing of teeth that they created by accident with the 29" / 700C / 622 goat rodeo, and decided to do the exact same thing... only this time, it was intentional. So intentional, in fact, that the made-up inch number wasn't even right! At least with "29 inch," the early 700C MTB tires actually kinda mostly measured about 29 inches across. They picked 27.5" because it's halfway between 26 and 29, not because there were any 584 mm MTB tires that were all that close to 27.5 inches. Or because 584 is halfway between 622 and 559, which it isn't.
584 mm probably makes a great MTB wheel size. Calling that size 27.5", but only when it's used on a mountain bike, is the dumbest thing the bike industry has done since the integrated headset. At least a flat tire won't require replacing your frame, so there's that.
--Shannon
At least the commonness of 650B wheels and tires might finally relieve shop monkeys of the constant need to explain to customers that, no, the "C" in "700C" doesn't stand for "centimeters," and in fact doesn't stand for anything at all. But probably not.
Last edited by ShannonM; 10-01-20 at 09:31 PM.
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10-01-20, 10:11 PM
#25
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The “C” does stand for something. It’s just stands for something that no one uses anymore. The French A, B, C system had a logic behind it. It’s not a great logic...the outside diameter is what they tried to keep constant...but it was logical. The same can’t be said of all the different sizes of tires of the same “size” as we currently use.
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Plan Epsilon Around Lake Michigan in the era of Covid
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Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!