About as puncture-proof as a Schwalbe Marathon at about 2/3 the weight. IMO the Conti Hardshell is the standard for flat resistance and durability. I recently replaced a Hardshell on my rear wheel. I weigh 205 and the tire lasted over 4000 miles until the wear dimples were gone. That's a rear wheel. Amazing. Flats were few and far between. The Hardshell sidewalls are far more durable than the GP 4000 with only a slight weight penalty.
These are durable, tougher-than-tough tires! I commute pretty carelessly over some really sketchy surfaces strewn with broken glass, gravel, bits of metal, the whole nine yards... and I have yet to get a flat with these tires after many months. That said, I hate these tires in the rain! They feel slippery and I don't have much confidence through the corners when the roads are wet. I plan to take them off and replace them with something grippier when it starts raining in the fall... but you can bet the Gator Hardshells will be back on my bike come spring.
Summer 2014 edit: I never got around to taking these tires off last winter. I got used to taking the corners a bit more carefully and the tires didn't give me too much trouble even in heavy rain. Still going strong now! I recommend these tires all the time to anyone who's sick of flats. Awesome.
I ride double centuries and feel these give the best blend of speed, performance and puncture resistance. Other tires may be lighter but over longer distances when you don't want to stop to repair a flat these are by far the best.
I have been using gator hardshell since they were introduced to the market.
I am a large rider riding on the road and trails . I always had issues with flats once I switched to these
tires my problems with flats have been reduced.
my average annual mileage is 3000 I usually get seasons.
I have used Continental tires for four years now. This is the first time I purchased a hard shell. The quality seems really good on this product. I have 100 miles on it already, and it is great. I think from now on I will use hard shell. Great product.
I was getting flats a lot with Conti Ultra-Sports II, then I went to the 4000 with the Vectran. A little better performance but still had what I considered too many flats. Sometimes every 3-4 rides! Switched to these and it took 42 rides and 1108 miles before I finally got a flat yesterday. Much better performance. I ride at pretty much max(120) in the rear, a little softer (110) in the front. Like the traction and wear so far. Must have happened at the end of the ride as I made it home and found the flat the next day. Lucky! ( sorta!!)
I switched over to Continental Gators about 7 years ago getting ready for a century ride. Fan for life. Great rolling, smooth and have taken about everything the road can dish out. Now have them on 3 road bikes and only 1 flat in more than 2800 miles. The only flat was a direct hit on a 6 jagged rock at dusk on a canyon road - cracked the sidewall but stayed on the rim. I use the wire bead for most rides, carry the folding version when I am on an extended ride.
We ride our tandem about 7000 miles a year mostly on road but about 20% on bike trails. Until I switched to this tire we probably averaged a puncture flat every 250 miles. In the past 3 years we have had two puncture flats. (There was a snake-bite caused by hitting a rather large stone at high speed but I don't fault the tire for that.)
Mileage has been good as well - on the order of 3000milestire.
We run 700x28 and the foldable tires can be difficult for these old hands to mount, so I try to stick to the wire beads.
This is the tire I use during my daily 38 mile ride, on my favorite road bike. You can depend on these Continentals. I've been using these tires since 2010. This is the same tire I installed on my TREK 1.1. in 2010, which was the same day I bought the bike. You can't loose with the stuff they use !
This is my 2nd pair of these tires and I love them. My bike mechanic highly recommended them and Im so happy to have listened to him. Durable and long lasting. Very well-made tires.
Bike from Brooklyn to Manhattan and back five days a week and these tires are a must for city commuting. Used them previously in Chicago and they have speed, durability, and puncture resistance.
Not the lightest tire out there which is why I took a star off (picky, yes).
Now, for the good part I've ridden these tires for 3 winters, probably 9K miles, over gravel rough roads, dirt, mud, snow, dirty post-snow roads, etc. Unlike my summer tires which I take care of, I ignore these all winter and clean them once in the spring when I put them away for the summer - in other words, they get totally abused and no love. I run them at 70 psi (I'm 180 pounds) and have had 1 flat in three years. These are great tires, they're sticky in the rain but roll just fine when it's dry. I'm a bit surprised that people in the other reviews run them at such high pressure, for I find that they actually perform a lot better at lower pressures (like in their rating range). I'll definitely replace these with another set of Hardshells.