On 10/26/2017 10:24 AM, wrote:
On Wednesday, October 25, 2017 at 2:27:58 AM UTC+2, jbeattie wrote:
On Tuesday, October 24, 2017 at 3:50:31 PM UTC-7, wrote:
I picked up a piece of glass today and got a flat on my third ride on this tire. I didn't get any flats on the Pro4 Endurance though some people say that they cut easily.

The Pro4 Endurance tire rolled really easily - something that the Power Endurance doesn't seem to do. Though that could simply be personal opinion.

I'm selling a set of wheels and they have Specialized Armadillos on them. They did not have more than possibly 500 miles on them and showed a lot of wear. While looking at them one of them had a real long cut but still no flat. These are VERY expensive tires.

But the flat I got today I'm sure I would not have gotten on a Continental Gatorskin.

So it appears that Continental is still the uncontested king of flat-proof tires.

That's disappointing to hear. I don't think my Pro4 Endurance are that tough, but they are certainly more flat-proof than Pro4 Service Course. The version II of the Pro4 Endurance supposedly had lower rolling resistance than version I of the Service Course. The Endurance was a pretty fast tire. You have to wonder why they fooled with it. I don't think Gatorskins or 4Seasons have changed in ten years. Conti has not seen a need to constantly fiddle with them, although like Joerg said, they might want to re-think the sidewalls.

I hope not if it means increasing rolling resistance. If you don't want flats or side wall cuts in case you hit a rock use Schwalbe marathon plus tires and accept the weight penalty and increase in rolling resistance instead of demanding sturdier side walls of high performance tires.

The worry about sidewall cuts surprises me. I get them so seldom they're
not even a concern. That's despite regular brief excursions on gravel,
using Paselas, or Gatorskins, or Schwalbe Marathons, depending on the bike.

Long ago I had some sidewall bubbles (not cuts) in Continental touring
tires, but I think that's a different problem entirely.

--
- Frank Krygowski