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Old 05-02-13, 12:58 PM   #1
MEversbergII
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Armouring up the tyres

Some months back I moved into a new town. It's closer to work by about half, but I have managed to get twice as many flats between my S.O. and I than before. This is because of all the broken glass on the roads and sidewalks.

Subsequently I have gone to using both Schwinn brand self-sealing tubes and Sunlite brand "Thorn resistant" tubes. Both seem to have survived, though for whatever reason Sunlite has shorter valve stems, which makes it impossible to use my floor pump with my "aero" style rims. Hm.

Anyways, I'm looking into kevlar tyres and belts to supplement the thick tubes / self sealing tubes (might spray some self sealing stuff inside the thick tube - double protection, right?). I've read kevlar tyres have a higher rolling resistance and poor "performance" (though nobody who's said that has qualified "poor performance"). I haven't any data on the kevlar belts though.

Between belts and tyres, which works better? Can you double up?

Also, what about metal tire inserts? Basically a band of flexible steel, not unlike cable bands.

M.
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Old 05-02-13, 01:15 PM   #2
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Looka round the forums and you will find an untold number of threads about bulletproof tires. Most people seem to be enamored of Schwalbe Marathons, which come in a few different flavors. I personally have had very good luck with Panaracer T-Serv tires, which are marketed to bike messengers. They have a kevlar belt under the tread layer. That is the way a lot of the puncture resistant tires work. There are no kevlar tires, just kevlar belted tires. Some people have had good luck with tire liners as well, but I have never had the need. Self-sealing tubes (like Slime) don't work well at higher inflation pressures, and I don't want to deal with the mess that they can leave in your tires. The other thing is to not ride on the shoulder. You are entitled to the whole lane if you need it to ride safely, so don't be a gutter bunny, and you may avoid a lot of the glass that is causing issues in the first place.
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Old 05-02-13, 01:23 PM   #3
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There are tubeless setups for both road and mountain bikes that work well with thorns and the like.
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Old 05-02-13, 02:19 PM   #4
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I've had no luck at all with Slime (type) tubes on road bikes. Even if they stop the leak, enough goop seems to leak out to make it impossible to put on a patch later. I haven't tried the allegedly thorn-resistant tubes myself, but I rode them briefly on a friend's bike and the ride was so harsh that I'd rather patch--it was like solid rubber. I've been running Panaracer Pasela TGs (TG has a Kevlar belt; standard Pasela doesn't) for a couple of years and like them, but I've just ordered some Schwalbe Big Bens to try.
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Old 05-02-13, 04:58 PM   #5
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What size tires are you looking for? That'll help us to give you recommendations.

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Originally Posted by MEversbergII View Post
Also, what about metal tire inserts? Basically a band of flexible steel, not unlike cable bands.
These don't exist,and would create all kinds of problems. They do make rubber inserts(Mr Tuffy,Slime) that I've read both good and bad things about.

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Oh,I'm sorry. My Dad used to work at Pax River. He was so happy when he retired and moved away.
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Old 05-03-13, 07:50 AM   #6
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I have a work bike that I ride on lunch breaks. I put Mr.Tuffys in some 1.5 x 26 slicks. I have to ride on the glass filled shoulder. Bad traffic area. I don't want flats tjat will make me late for work. The Tuffys are heavy and in the past they have tore up my sidewalls, but they do get me back to work on time. Everything is a trafe off. I wont use Slime.
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Old 05-03-13, 10:12 AM   #7
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(Steel belts?)
These don't exist,and would create all kinds of problems. They do make rubber inserts(Mr Tuffy,Slime) that I've read both good and bad things about.
Not available separately, but there were tires with steel mesh embedded in them:
http://velobase.com/ViewComponent.as...m=120&AbsPos=7

I've used heavier tires with Mr. Tuffy liners when I'm riding frequently on the local paths. Fixing a flat when you're rushing to work is a gigantic pain. Right now I use Continental Gatorskins for general riding and they're doing fine. If you need absolutely bulletproof tires, I would switch to Schwalbe Marathon Plus: http://www.schwalbetires.com/bike_ti...tires/flatless
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Old 05-03-13, 03:27 PM   #8
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Quote:
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What size tires are you looking for? That'll help us to give you recommendations.
Sorry about that! They're 700c x 38c.

I'm going to look into Tubeless. Really, it's my SO who seems to accumulate the flats. We'd like to try to ride in traffic (new route has no bike lanes, old one did), but much of the time we do we get some very... aggressive drivers. Mostly lower class individuals, which are rarely patent or polite.


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Oh,I'm sorry. My Dad used to work at Pax River. He was so happy when he retired and moved away.
I also work for PAX. Why do people (not just here, but on other fora) keep apologizing?

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Old 05-03-13, 05:14 PM   #9
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Sorry about that! They're 700c x 38c.
I'm going to look into Tubeless.
Vittoria Randonneurs are pretty much the default in urban tires,I've never flatted them. They come in 35 and 40mm;going down or up that little shouldn't be an issue(check first to make sure you have enough clearance if going up). The Pro models have folding beads which are lighter. Schwalbe Marathon Supremes are expensive,but they handle like sportbike radials,and I've picked plenty of debris out of my rear without flatting.

I wouldn't go tubeless. If you were having probs with goatheads,going tubeless with sealant might work,but for glass and other FOD it'll be a bigger problem. With tubes,you can just swap in another tube and deal with it later,with tubeless you have to fix the puncture right now and do a proper job.

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I also work for PAX. Why do people (not just here, but on other fora) keep apologizing?
Cuz it's down in the County. My Dad hated it down there. Many folks have well water that stinks even with filtration systems. Lots of local gas stations have crap gas;my Dad used to either go up to Waldorf or use octane booster. Then there's the locals. As my Dad used to say,"that's the County way". And Dad did try to integrate;he used to compete in tractor pulls with his two '40's Farmalls. Only thing he liked about being down there was fishing out in the bay.
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Old 05-06-13, 10:00 PM   #10
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Cuz it's down in the County. My Dad hated it down there. Many folks have well water that stinks even with filtration systems. Lots of local gas stations have crap gas;my Dad used to either go up to Waldorf or use octane booster. Then there's the locals. As my Dad used to say,"that's the County way". And Dad did try to integrate;he used to compete in tractor pulls with his two '40's Farmalls. Only thing he liked about being down there was fishing out in the bay.
Well, having been here for 25 years I guess I can't have the kind of insight your father did. However, I have found that somewhere between 90-99% of the "Import People" (i.e. fly-ins) are complete ... jerks. Your father sounds like the 1-10% who weren't, though, since he tried to integrate.

Can't speak to the well water. I had grown up on well and only noticed an odour shortly before I moved out of my parent's house, but it was in only one sink and it occurred after we had replaced a damaged pipe, so I assumed it was something to do with the pipe itself. Can't speak to the gas either, first anyone's ever commented on it. I figured gas was gas - standards and all that. What's up with the "locals", though? If he's worried about the farmers...well, they're survivors. Good folk, unless they have a substance abuse problem - but that's independent of birthplace.

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Old 05-07-13, 04:49 AM   #11
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I'd stay away from slime and find a good set of tires. I have not had a flat with my Schwalbe Marathon Mondials and several thousand miles. There are others that maybe just as good, look around a bit more
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Old 05-07-13, 05:17 PM   #12
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I've been poking about a bit; I think the Marathon Mondial will do, though 40 some bucks per tyre is hefty. Still, Schwalbe seems to be a respectable name, so that commands a respectable price tag.

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