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Old 08-23-11, 08:36 AM   #1
ChrisM2097
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5 riders, 6 flats in under 3 minutes

Sunday afternoon, I met with several friends to do a 28 mile ride. One of them recommended a shortcut through the school grounds, less than a 1/2 mile from the starting point. As soon as we left the pavement we realized that we had ridden through a patch of some sort of thorny ground cover.

I started pulling thorns from my tires (about 10-15 per tire), and heard a hissing sound with every one pulled. 3 of my friends had the same results. 2 of them (including the one that recommended this 'shortcut') somehow didn't pick up any thorns.

We walked back to the house, I called my wife, and asked her to bring one of my other bikes over so that I could salvage the tubes from it.

We found just enough spare (and salvaged) tubes, and still had just enough daylight to complete the ride, so it turned out to be a nice day anyways.

Lessons learned: No more shortcuts. Always carry spare tubes (I always have one...but obviously that wasn't enough).
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Old 08-23-11, 09:14 AM   #2
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Dang, that really blows. Reason why I carry 2 tubes and a patch kit

Were the other guys running on armadillos or something?
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Old 08-23-11, 09:24 AM   #3
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Nope. 4 of us were on 2.0"+ MTB tires. The other (the one that recommended the shortcut) was on whatever tires came with his Trek 7.5 Hybrid (700c).
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Old 08-23-11, 12:54 PM   #4
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Can beat that--One rider and 6 flats without moving. They had been hedge cutting and one rider got a flat. No problem -change it but Air would not go in the New Tube. Off with tyre and the "New Tube" had a Rip around the valve. Repair the first tube and found two pin ****** so rebuild tyre and tube and up to pressure. Pack away repair kit and as we went away again- the repaired tube was flat. So that was 3 flats. Off with the tyre and hand inside and found several thorns that were about to come through. Reverse the tyre and pull out all the thorns- Borrowed tube and inflated and it stayed up- but the other tyre was very low on air. Off with the tyre and the tube- Reverse Tyre and pull out the Thorns and repair the tube. Pump up again and it went down- Off again and one of the patches was leaking. Brand new Borrowed Tube and finally we got going but we turned round and went home. If one rider could have that many problems- How many other riders had thorns in their tyres waiting to go down.
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Old 08-23-11, 01:15 PM   #5
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Off with the tyre and hand inside and found several thorns that were about to come through. Reverse the tyre and pull out all the thorns
One of the first things I did was turn the tires inside out and run my hand over the entire inside surface to check for thorn tips that couldn't be seen/felt from the exterior. I found approximately 8-10 or so in each tire. With so few spare tubes, and all the popped tubes basically looking like swiss cheese, and not worth patching, I didn't want to risk putting any holes in the spares.
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Old 08-23-11, 02:51 PM   #6
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I have run with 2 spare tubes and a patch kit for years.

I thnik it was the first time I did the Grand Tour (200 or more miles back then). I had 2 spares and gave my second to a rider on his third flat before the 30 mile mark.

Turned out I did need my second spare at about the 160 mile mark. A bit of steel belt, and the only time out of 3 where I picked one of those up where I found it the first time.
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Old 08-23-11, 06:05 PM   #7
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7.5fx stock tire is Bontrager Race All-Weather Hard-Case, 700x28c

about which Trek says "Bontrager's top-of-the-line triple flat protection—the best in the business." My 7.3 has the same tires....glad to hear it's not just marketing hype.
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