Perfect tire for a road bike
920306
I just replaced the Bontrager tires on my Trek 4.5 road bike with these. The old tires had a number of cuts and were ready to fail. They had plenty of wear and had around 3,000 miles on them, so I decided I would change them before I got a flat in the middle of no where. It was immediately obvious how much faster I went with these Continental tires. I have been on over 20 rides of 25 - 65 miles each with them. They have worked perfectly so far. I run at 110 - 120 PSI and they are definitely faster than my old tires. I would buy them again. This is a great handling tire. Light enough to spin up quickly with great traction. I have not gotten any flats or had any sidewall issues so far

The only drawback to the tires is their price, but you can just look for sales.
4270425
This is sufficient for a regular bike tire, but a road bike pressure level is going to create issues and might break it entirely.  Use it for its intended purpose and you'll likely find it adequate.  It really served me best by just hanging out in my sports bag for occasions when a quick game of soccer or basketball with the kids was in order.  Very compact and travels well.
3509172
This is a very versatile tire.  It works very well on the road because the rolling resistance seems low relative to an offroad tire.  I noticed how much less effort is required to get the bike going and maintain speed.  They also work well on grass and soft ground.  They are quite wide and offer good floatation.  I could see if problem with hill climbing on a slippery surface because they have little to no tread.
2921496
A good tire, resistant to flats, with relatively good grip. If you occasionally ride rough-loose gravel roads, the gravel with cut into the tire treads. When I returned from Cycle Oregon, they looked somewhat shredded, but the performance was still there.
3807176
Perfect for the bike their  on. 700c  40 wide tires.
3191485
Since I like a little dirt on my roads, I typically ride on WTB Nano's on my FELT F5X.  Riding on a regular road tire was so much faster and easy rolling.  This tire held up pretty well on my first century with no issues.
I may post again once I get in a few more miles.  Good tire but I guess I have to put more than 100 miles on them to truly tell the tale.
2652630
Awesome tires! I use them on a high power (4000W) ebike and ride almost every day. Very good traction, fairly low rolling resistance and NO FLATS. 50+ mph and no issues. These are the best tires I've found yet to put on this bike.
4587172
Made my old bike ride like a new bike again. White walls are awesome and the tread on them is great. Grips well on all pavement so for. Great tire, buying another pair for next bike restore.
2348037
Sometimes I want to ride my mt bike into work rather than my commuter bike or join my wife on her rail-trail ride.  These tires are perfect for that.  I typically pump them up to 80 PSI w/o a problem.
2867299
I put these tires on an old K-mart All pro road bike I fixed up to ride. I've put about 1400 miles on the tires so far (give or take 200 miles). The front tire looks great, still has plenty of tread left, though the back tire has a few bald spots when I locked it up while braking. Still usable though, and I plan on getting a few hundred more miles out of the rear tire. I have pretty much ridden on sunny days, so I can't comment about wet use of the tire. I also haven't tried out any other road bike tires, but I can't complain about these, especially at the price. I'll plan on using these again.
4114028
If you're researching bike tires, you should probably go read some real reviews on bike-centric forums or websites rather than just Amazon reviews, but FWIW these tires are great.  I am a bit of a Continental snob and therefore don't ride anything else.  These tires are handmade in Germany, as are all of Continental's premium tires (they do have "budget" made-in-china tires) and I am more than happy to pay the extra money that they command.

These tires have never made me feel like there was a lack of grip, I get VERY few flats, and they're good for a couple thousand miles (depending on rider weight).  I ride my bike mostly out in the country where there is a lot of detritus in the bike lane or on the shoulder, and I will say that this can carve little chunks out of the tire, but that's the price you pay.  You can ride Gatorskins and not have that problem as much, but you will have a much rougher ride because those tires are harder.  In my opinion, these are ideal all-weather, all-purpose road bike tires for the casual to serious enthusiast rider.  For the same reasons, it is also an excellent choice for bike commuters.
3923974
I have an old Motive mountain bike.  I hardly go off road, so I bought this tire because I was looking for a smoother ride.  I have had this tire since August, looks pretty good still, hardly any wear can be detected.  It still has the little nubs on it.  I am happy with this tire, the ride is very smooth, it's durable and I haven't had any flats.  I read the info on the webpage, it says this tire can be used off road.

If you ride most of the time on the street, this tire is perfect.
3859234
Great tire, great price. This is the second one I have put on my Harley rigid. The old school tread design is perfect.
1684006
Great tires for a cyclocross bike. I ride 50% on roads and 50% on trails with these tires and love them.
892786
Kept trying different tires on the custom Trek 1.5...  due to roads around here was always getting flats.  This is the first tire that I can honestly say I will be getting again (4000 NOT the 4000s).  Added bonus - these come in different colors to match your ride too....  Bike stores in NE Wisconsin can't keep these in stock - so always have to web order...  usually $100 for a pair shipped.  Great tire - you won't regret it.  put it to 105-115 for faster ride.
2226889
Im very impressed with these tires.  I wanted a smaller tire for my hybird bike and thes fit the bill perfectly
3161826
I have these front and back on my 2008 Specialized Rock Hopper and I use this bike as a street MTB bike. I love these tires, they roll very good and are fast and the corner grip is awesome. I got lucky when I decided to go with Panaracer and look for an outstanding hard pack tire because I got the right tires at the first try. I will always use the Panaracer Comet for my street MTB bike.