|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires ThatShould Last But Don't
I'm using a tire on my "daily use" bicycle that just shouldn't work,
but it does. I exchanged wheels from another old bicycle when the original tire gave out, as a temporary fix. That was last spring. This tire is crumbling on the side wall and very old. The newer tire wore out pretty fast and the tube never held air pressure for more than two days before needing topping up. This old tire and tube just won't give out and hold air pressure for two weeks. Go figure. Here's a photo of how bad this tire is: http://i44.tinypic.com/30clma9.jpg and I'm not complaining, really, just a bit puzzled over what makes a good tire (many of which don't seem to last anymore) and this old tire that keeps going even when falling apart. -- A website is a place, where, when you go there, it does everything possible to distract you, from finding the information you came there to see.- E.W. |
Ads |
#2
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires ThatShould Last But Don't
Erness Wild wrote:
I'm using a tire on my "daily use" bicycle that just shouldn't work, but it does. I exchanged wheels from another old bicycle when the original tire gave out, as a temporary fix. That was last spring. This tire is crumbling on the side wall and very old. The newer tire wore out pretty fast and the tube never held air pressure for more than two days before needing topping up. This old tire and tube just won't give out and hold air pressure for two weeks. Go figure. Here's a photo of how bad this tire is: http://i44.tinypic.com/30clma9.jpg and I'm not complaining, really, just a bit puzzled over what makes a good tire (many of which don't seem to last anymore) and this old tire that keeps going even when falling apart. troll mode and aged tubulars don't last longer than fresh ones... |
#3
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires ThatShould Last But Don't
Erness Wild wrote:
I'm using a tire on my "daily use" bicycle that just shouldn't work, but it does. I exchanged wheels from another old bicycle when the original tire gave out, as a temporary fix. That was last spring. This tire is crumbling on the side wall and very old. The newer tire wore out pretty fast and the tube never held air pressure for more than two days before needing topping up. This old tire and tube just won't give out and hold air pressure for two weeks. Go figure. Here's a photo of how bad this tire is:http://i44.tinypic.com/30clma9.jpg and I'm not complaining, really, just a bit puzzled over what makes a good tire (many of which don't seem to last anymore) and this old tire that keeps going even when falling apart. Some tires and tubes hold air better than others, and some rims hold air better than others. The rim in your photo looks like a steel single-walled rim, so it probably has a rubber rim strip that functions as a gasket when the tire is inflated. A double-walled rim with fabric rim tape is generally much more permeable. Likewise, an old gumwall tire may have much more rubber in the sidewall, even on just one side of the casing cords, than a newer skinwall, and may therefore be slower to lose pressure. Many folks use tire, tube and rim combinations that obligate them to top up before every ride (although this is much less common since the decline of sewup tires). I have seen others that can hold acceptable pressure for more than a month. Chalo |
#4
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires ThatShould Last But Don't
Chalo wrote:
Erness Wild wrote: I'm using a tire on my "daily use" bicycle that just shouldn't work, but it does. I exchanged wheels from another old bicycle when the original tire gave out, as a temporary fix. That was last spring. This tire is crumbling on the side wall and very old. The newer tire wore out pretty fast and the tube never held air pressure for more than two days before needing topping up. This old tire and tube just won't give out and hold air pressure for two weeks. Go figure. Here's a photo of how bad this tire is:http://i44.tinypic.com/30clma9.jpg and I'm not complaining, really, just a bit puzzled over what makes a good tire (many of which don't seem to last anymore) and this old tire that keeps going even when falling apart. Some tires and tubes hold air better than others, and some rims hold air better than others. eh? rims hold air? are these u.s.t??? The rim in your photo looks like a steel single-walled rim, so it probably has a rubber rim strip that functions as a gasket when the tire is inflated. A double-walled rim with fabric rim tape is generally much more permeable. say what??? Likewise, an old gumwall tire may have much more rubber in the sidewall, even on just one side of the casing cords, than a newer skinwall, and may therefore be slower to lose pressure. tire sidewall makes a difference??? Many folks use tire, tube and rim combinations that obligate them to top up before every ride (although this is much less common since the decline of sewup tires). I have seen others that can hold acceptable pressure for more than a month. dude, please please please stop. go back to your old school, find your old science teachers and give them a good hard slapping. they have failed you and damaged you for life. |
#5
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires ThatShould Last But Don't
Erness Wild wrote:
I'm using a tire on my "daily use" bicycle that just shouldn't work, but it does. I exchanged wheels from another old bicycle when the original tire gave out, as a temporary fix. That was last spring. This tire is crumbling on the side wall and very old. The newer tire wore out pretty fast and the tube never held air pressure for more than two days before needing topping up. This old tire and tube just won't give out and hold air pressure for two weeks. Go figure. Here's a photo of how bad this tire is: http://i44.tinypic.com/30clma9.jpg and I'm not complaining, really, just a bit puzzled over what makes a good tire (many of which don't seem to last anymore) and this old tire that keeps going even when falling apart. That is a nylon casing tire; the latex sidewall has crumbled but it may still be safely ridden as nylon fabric doesn't rot. A generation before that, most tires were cotton so a damaged sidewall cover meant a blowout after the cotton threads were wet. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#6
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires That Should Last But Don't
I'm still riding the same set of tires that came with my GT Outpost mountain
bike in 1996. This bike must have a billion miles on it, including three trips up the NY/Connecticut coast into Rhode Island. For whatever reason, these tires will not show signs of wear. I was thinking maybe the trick is to use mtb tires for road riding, but then I realized that the first three-four years I had this bike was almost all off-road riding. I never fully understood why it's a good idea to always mount your tires so they spin in the same direction, but perhaps that has something to do with hyper longevity? Anyway, the bottom line is that I have some other bikes I use for errand runs and for day rides with my wife in a place out here called Fire Island. This riding is very low impact, to say the least. If you look at the tires on those relatively new, barely-used bikes, you'd think I'd been practicing skids with them on top of an all sandpaper course. |
#7
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires That Should Last But Don't
My apology. I missed the point of this thread until I looked at the photo.
My tire doesn't look like that at all. |
#8
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires ThatShould Last But Don't
jim beam wrote:
Chalo wrote: Erness Wild wrote: I'm using a tire on my "daily use" bicycle that just shouldn't work, but it does. I exchanged wheels from another old bicycle when the original tire gave out, as a temporary fix. That was last spring. This tire is crumbling on the side wall and very old. The newer tire wore out pretty fast and the tube never held air pressure for more than two days before needing topping up. This old tire and tube just won't give out and hold air pressure for two weeks. Go figure. Here's a photo of how bad this tire is:http://i44.tinypic.com/30clma9.jpg and I'm not complaining, really, just a bit puzzled over what makes a good tire (many of which don't seem to last anymore) and this old tire that keeps going even when falling apart. Some tires and tubes hold air better than others, and some rims hold air better than others. eh? *rims hold air? *are these u.s.t??? Steel is less permeable than rubber, jackass. The rim in your photo looks like a steel single-walled rim, so it probably has a rubber rim strip that functions as a gasket when the tire is inflated. *A double-walled rim with fabric rim tape is generally much more permeable. say what??? Rubber over steel is less permeable than cloth over nothing, jackass. Likewise, an old gumwall tire may have much more rubber in the sidewall, even on just one side of the casing cords, than a newer skinwall, and may therefore be slower to lose pressure. tire sidewall makes a difference??? The tire sidewall is the thinnest surface between pressurized and ambient air, jackass. Many folks use tire, tube and rim combinations that obligate them to top up before every ride (although this is much less common since the decline of sewup tires). *I have seen others that can hold acceptable pressure for more than a month. dude, please please please stop. go back to your old school, find your old science teachers and give them a good hard slapping. *they have failed you and damaged you for life. You are oblivious, ignorant, thick-headed, uncivil, and a completely unpleasant mother****er to boot-- impossible to learn from and utterly unwilling to learn. I'm done talking to you, but if anyone else would like to talk about the diffusion of pressurized air through the rubber bladder we call a tire, I'll happily oblige. Jackass. Chalo |
#9
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires ThatShould Last But Don't
On 26 Apr, 16:03, Erness Wild wrote:
I'm using a tire on my "daily use" bicycle that just shouldn't work, but it does. I exchanged wheels from another old bicycle when the original tire gave out, as a temporary fix. That was last spring. This tire is crumbling on the side wall and very old. The newer tire wore out pretty fast and the tube never held air pressure for more than two days before needing topping up. This old tire and tube just won't give out and hold air pressure for two weeks. Go figure. Here's a photo of how bad this tire is:http://i44.tinypic.com/30clma9.jpg and I'm not complaining, really, just a bit puzzled over what makes a good tire (many of which don't seem to last anymore) and this old tire that keeps going even when falling apart. Looks like you've raided my stash. |
#10
|
|||
|
|||
Bicycle Tires That Shouldn't Last But Do and Bicycle Tires ThatShould Last But Don't
On 26 Apr, 17:39, wrote:
The hardened and flaking rubber does little for the tire structure except keep the cords dry and clean. *If you don't ride them wet, they should last until the cords fail from oxidation and UV. My tyres cords are cotton, they'll rot if I leave em wet, they'll abrade and weaken with dirt, but UV damage, c'mon? |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
F/S *** Bicycle Tires *** | Dan Donnelly | Marketplace | 0 | August 22nd 05 11:18 AM |
F/s *** Bicycle Tires *** | Dan Donnelly | Marketplace | 0 | August 11th 05 12:47 AM |
relative cost/usage between bicycle tires and automobile tires | Anonymous | Techniques | 46 | April 7th 04 07:03 PM |
F/S CONTINENTAL BICYCLE TIRES | CritUSA | Marketplace | 1 | October 5th 03 01:04 PM |