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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

GP4000s gone all puncturey lately

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Old 12-23-14, 05:37 PM
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Originally Posted by Dunbar
Give it a rest man. Stop telling other people how they should spend their exercise time.
Honestly, I don't see where he's doing that. To me, his info read basically like "different people have different goals and they all have benefits."

If you ask a doctor, they'll tell you regular vigorous aerobic exercise is the best thing you can do for your overall cardiac health. That's why the debate on "do I go long or go short/more regular" has largely tilted in the last few years toward the latter.
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Old 12-23-14, 05:57 PM
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Originally Posted by rpenmanparker
Even with your cycling record for the year you still need $4 bucks to get a latte. Can't anything just be about doing whatever feels right on a given day? Do you also have a goal for how many times to poop a day? Loosen up a bit. It's very pleasant.
You have a very odd way of "expressing your preferences".
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Old 12-23-14, 06:18 PM
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Originally Posted by FLvector
You have a very odd way of "expressing your preferences".
You are right. That was AA (after attack). I get a little testy when my intent is misinterpreted.

Merry Christmas everyone. Stay safe both on the bike and off. (Oops, there I go with the unsolicited advice again. )
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Old 12-23-14, 06:25 PM
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Originally Posted by rpenmanparker
Merry Christmas everyone. Stay safe both on the bike and off.
Back atcha. And keep the rubber side down.
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Old 12-23-14, 06:58 PM
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Update;

Tire was down again this morning. Checked, and the new hole was 2 inches away from the patch put on yesterday. A fine tooth comb check of the tire surface revealed a tiny metallic foreign object, barely visible to the naked eye. It wouldn't come out with hand pressure, or with a pliers, and it eventually took a pair of tweezers like these;

to get it clear. A 2-3mm long piece of wire, possibly from a frayed brake/shifter cable.

No visible damage to the outside of the tire otherwise, so gonna take it out again tomorrow am and see how things go.
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Old 12-23-14, 07:02 PM
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Originally Posted by Leinster
Update;

Tire was down again this morning. Checked, and the new hole was 2 inches away from the patch put on yesterday. A fine tooth comb check of the tire surface revealed a tiny metallic foreign object, barely visible to the naked eye. It wouldn't come out with hand pressure, or with a pliers, and it eventually took a pair of tweezers like these;

to get it clear. A 2-3mm long piece of wire, possibly from a frayed brake/shifter cable.

No visible damage to the outside of the tire otherwise, so gonna take it out again tomorrow am and see how things go.
Good job on that.
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Old 12-23-14, 10:37 PM
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Originally Posted by rpenmanparker
Good job on that.
Thanks, but don't go congratulating me til I've done a few flat-free rides on it.
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Old 12-24-14, 06:25 AM
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Originally Posted by Leinster
A 2-3mm long piece of wire, possibly from a frayed brake/shifter cable.
I get those somewhat regularly, I had always assumed that they came from steel belted tires.
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Old 12-24-14, 07:04 AM
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Originally Posted by Leinster
Thanks, but don't go congratulating me til I've done a few flat-free rides on it.
Of course, but I was simply referring to the search and diagnostic aspects of the job. Patience and perseverance.
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Old 12-24-14, 01:11 PM
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Originally Posted by Phlorida
I get those somewhat regularly, I had always assumed that they came from steel belted tires.
Could well be that. You'd presume it's road debris rather than anything I'd pick up at home. Can't imagine how a piece like that would force its way into the rubber without being rolled over at 20ish mph.
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Old 12-24-14, 01:17 PM
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Originally Posted by Leinster
Update;

Tire was down again this morning. Checked, and the new hole was 2 inches away from the patch put on yesterday. A fine tooth comb check of the tire surface revealed a tiny metallic foreign object, barely visible to the naked eye. It wouldn't come out with hand pressure, or with a pliers, and it eventually took a pair of tweezers like these;

to get it clear. A 2-3mm long piece of wire, possibly from a frayed brake/shifter cable.

No visible damage to the outside of the tire otherwise, so gonna take it out again tomorrow am and see how things go.
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Old 12-25-14, 11:26 AM
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Yup, something not a million miles removed from that.
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Old 12-27-14, 06:33 PM
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I've found the Gatorskin Hardshells to be much more puncture resistant.
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Old 12-28-14, 11:21 AM
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Originally Posted by vesteroid
the myth of the low level fat burning endurance is just that a myth.
Except that it's not. It's science.
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Old 12-28-14, 11:43 AM
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Originally Posted by cellery
Except that it's not. It's science.

I think if you read up, you will see it is a myth. The myth is that in TOTAL this burns more fat. What multiple studies show is that by exercising in a higher range (hr power etc) you will over time burn much more fat than exercising in the so called fat burning range. Over time, is lets say 24 hours. The higher intensity workout raises your metabolism significantly higher than the fat burning range, so over the next day you burn off more fat, than the hour you spent in the fat burning range.
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Old 12-28-14, 09:10 PM
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I went this entire season flat free with GP4000's. When I first mounted them on new rims I was getting flats all of the time. The culprit was cheap rim tape. I replaced it with better and slightly wider tape which solved the problem. Perhaps the OP's tape has moved and the inside of the nipple is exposed. Try replacing the rim tape.
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Old 12-28-14, 10:52 PM
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Originally Posted by Phlorida
I get those somewhat regularly, I had always assumed that they came from steel belted tires.

+ 1

Busier roads with trucks. Not uncommon for a truck to shed a re-tread and spread a bit of debris about.
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Old 12-29-14, 12:00 AM
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Originally Posted by MSchott
I went this entire season flat free with GP4000's. When I first mounted them on new rims I was getting flats all of the time. The culprit was cheap rim tape. I replaced it with better and slightly wider tape which solved the problem. Perhaps the OP's tape has moved and the inside of the nipple is exposed. Try replacing the rim tape.
See update in post #55 . It was a teensy weensy bit of wire that got stuck in the tire. Pulled it out and have since done 3 rides for 75 miles total. Long may it continue.

I will keep an eye on my rim tape, but this round of flats were all definitely on the outer side of the tube. Thanks for the suggestion.
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Old 12-29-14, 10:27 AM
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Originally Posted by vesteroid
I think if you read up, you will see it is a myth. The myth is that in TOTAL this burns more fat. What multiple studies show is that by exercising in a higher range (hr power etc) you will over time burn much more fat than exercising in the so called fat burning range. Over time, is lets say 24 hours. The higher intensity workout raises your metabolism significantly higher than the fat burning range, so over the next day you burn off more fat, than the hour you spent in the fat burning range.
Ah I thought you were referring strictly to cardio at moderate levels, but after rereading I see you were talking about totals, so I of course agree with you.
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