Rediscovering The Joys Of 700x21 Tires
08-21-15, 06:59 PM
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08-21-15, 07:44 PM
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My guess is they are pretty much unattainable these days...
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08-21-15, 07:53 PM
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08-21-15, 07:56 PM
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08-21-15, 07:59 PM
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Not easy finding skinnies of any type these days, let alone tan walled cotton Wolbers...
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08-21-15, 08:07 PM
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I run 20s on my track bike. But, you know, the track surface is smooth, like a baby's butt. Nothing under 25 for the road.
Viscontea 012 by iabisdb, on Flickr
Viscontea 012 by iabisdb, on Flickr
08-21-15, 08:15 PM
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I run 20s on my track bike. But, you know, the track surface is smooth, like a baby's butt. Nothing under 25 for the road.
Viscontea 012 by iabisdb, on Flickr
Viscontea 012 by iabisdb, on FlickrYour lucky. My track, Kissena, is a lumpy, bumpy cracked-up sorry mess of asphalt....
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08-21-15, 09:02 PM
#34
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Sometimes you do it because you have to. I got this 87 Giant-built Specialized Allez SE for a good price but check out that tire clearance with a 25mm tire I had hoped to use! I bought some Michelin 23mm Dynamic Classic tires that actually have an extra mm of clearance. I believe the Dynamic Classic also comes in a 20mm. Anyone try one?
IMG_5750 by Jim Harris, on Flickr
IMG_5750 by Jim Harris, on Flickr
08-21-15, 09:14 PM
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I have often used a narrow tire up front, sharper reactions. A bit bigger in back as there is a bit more mass on that axle and while I can steer around stuff with the front, the trailing rear tire does not always get miss things.
08-21-15, 10:55 PM
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08-22-15, 05:44 AM
#37
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The Cognitive Redundancy Principle, "Every conversation about banjos is the same", can be applied to tires as well.
I wonder about all the various studies on what tires and pressures are better for what. I know there are those here who advocate lower pressure and wider tires. My experience makes me prefer higher and narrower. Pump 'em to the max, especially the narrow ones. Independent of the pinch-flat likelihood, if I let them go soft they don't feel the same. Of course it depends, or it may depend, on the road surface and how fast one rides and how heavy one is and lots of other things. I don't mind the extra road feel, in fact I like it. If I wanted a cushy ride I'd take the Caravan.
After all that, one thing is invariably true: for similar construction and materials a smaller tire will be lighter.
I wonder about all the various studies on what tires and pressures are better for what. I know there are those here who advocate lower pressure and wider tires. My experience makes me prefer higher and narrower. Pump 'em to the max, especially the narrow ones. Independent of the pinch-flat likelihood, if I let them go soft they don't feel the same. Of course it depends, or it may depend, on the road surface and how fast one rides and how heavy one is and lots of other things. I don't mind the extra road feel, in fact I like it. If I wanted a cushy ride I'd take the Caravan.
After all that, one thing is invariably true: for similar construction and materials a smaller tire will be lighter.
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08-22-15, 05:54 AM
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Sometimes you do it because you have to. I got this 87 Giant-built Specialized Allez SE for a good price but check out that tire clearance with a 25mm tire I had hoped to use! I bought some Michelin 23mm Dynamic Classic tires that actually have an extra mm of clearance. I believe the Dynamic Classic also comes in a 20mm. Anyone try one?
IMG_5750 by Jim Harris, on Flickr
IMG_5750 by Jim Harris, on Flickr
08-22-15, 06:20 AM
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08-22-15, 08:21 AM
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Sometimes you do it because you have to. I got this 87 Giant-built Specialized Allez SE for a good price but check out that tire clearance with a 25mm tire I had hoped to use! I bought some Michelin 23mm Dynamic Classic tires that actually have an extra mm of clearance. I believe the Dynamic Classic also comes in a 20mm. Anyone try one?
IMG_5750 by Jim Harris, on Flickr
IMG_5750 by Jim Harris, on Flickr
08-22-15, 08:40 AM
#43
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I picked up a 718a with what looked like a NOS set of those tires. They moved to my 1200. Love those tires, I think they are rebranded Panaracers, (you can find a few different Panaracer road tires in 20-22.5). For whatever reason I find them plenty cushy and they are quick, quick, quick.
08-22-15, 08:44 AM
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I picked up a 718a with what looked like a NOS set of those tires. They moved to my 1200. Love those tires, I think they are rebranded Panaracers, (you can find a few different Panaracer road tires in 20-22.5). For whatever reason I find them plenty cushy and they are quick, quick, quick.
I was wondering who made those Miyata branded tires. And yes, they were super quick, not to mention good looking to.
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08-22-15, 08:51 AM
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Smaller tire means smaller diameter. Smaller diameter means less distance covered per rotation. Less distance per rotation means more mechanical advantage.
08-22-15, 09:06 AM
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Those are tubulars, if that makes a difference. Sorry to get anyone excited if so.
Those are the 3fer deal over at Yellow Jersey. Several of us sewup guys are runnin them with great pleasure and at 3 for 50.00 just cant be beat.
Those are the 3fer deal over at Yellow Jersey. Several of us sewup guys are runnin them with great pleasure and at 3 for 50.00 just cant be beat.
08-22-15, 09:08 AM
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Sometimes you do it because you have to. I got this 87 Giant-built Specialized Allez SE for a good price but check out that tire clearance with a 25mm tire I had hoped to use! I bought some Michelin 23mm Dynamic Classic tires that actually have an extra mm of clearance. I believe the Dynamic Classic also comes in a 20mm. Anyone try one?
IMG_5750 by Jim Harris, on Flickr
IMG_5750 by Jim Harris, on Flickr
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08-22-15, 09:09 AM
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The physics involved tells me this is a wash in the grand scheme of things. Energy = Force x Distance.
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08-22-15, 09:46 AM
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