1986 Bridgestone 500, 1981 Motobecane Super Mirage
I have them, but only put about 30 miles on them so far. The GP 4000 is supposed to be long wearing, thought it may slightly lean to better rolling resistance than flat protection. The 700x25 is also said to measure slightly wider (~27mm), so it should give a bit nicer ride. The reflective sides are very bright, too.
IMO this is a fine tire.. Got mine for $43/pair shipped from probikekit. An LBS has it for $57 each.
I agree that the GP 4000s roll nicely but aren't as flat-proof as Gatorskins. They are a really good compromise if you're not prone to flats in the first place. Otherwise I'd recommend sticking with Gatorskins.
In my case, as a 230 lb rider, I gave up on running them on my back wheel (too many flats). My favorite setup is currently a 700x28 Gatorskin in the back and a 700x25 GP 4000 in front.
(Knock on wood) I've only had one flat in two seasons on the Gatorskins ... I ride over lots of crap, not sure if its the strength of the tires, the fact that I'm reasonably light, or just good karma. Whatever it is, I'll take it.
Cannondale SuperSix, Lemond Poprad. Retired: Jamis Sputnik, Centurion LeMans Fixed, Diamond Back ascent ex
I am in the same dilemma.
I have always used UltraGatorSkin 25c. I wanted and decided to try the folding Gatorskin 23c to see if I note the weight savings (it's not just my commute bike and roads here are near perfect), but pbk is out of stock.
So it is between the GP4000 or the 4 season. 4 season seems to be a bit more durable? But the ad copy talks about being wet and cold optimized. Riding right now is 90-110F, with the rare, but possible monsoon thunderstorm. That seems to not fit.
Im 220# and have the same luck with them as I do other puncture resistant tires. They work well. They are more resistant to punctures than say a real race tire and they roll so very nicely. I have about 800 miles on mine and I love it. I won't buy any other tire except maybe the GP4000 All Season for winter.
I have used gatorskins, armadillos, racelite hardcases, etc and Im sold on the GP4000.