Great tire, excellent tire on sale
I've used conti Grand Prix's on my road bike for three years. I ride 6-8,000 milesyr. I generally get 4-5,000 miles out of a set without swapping front to back baring a major catastrophe. These tires seem to stick to the road as well as any and have always been a comfortable ride to me. I've had some flats due to road hazards, but never because of a tire failure.
When I got my new high quality plush carbon road bike in 2010, it came with Michelin Pro4 tires. I didn't have a particular reason to change even though I'd had Contis on my old steely. Then last this last year I had some issues with quality control on two different Pro4 Endurance tires (probably tire-age-related but had a potentially scary tread separation on a rear tire) so decide to try the Continental 4000 S II. I had hoped to try the 28c and did my best to estimate if they would fit but NOT quite (1 mm too tall and they looked a little (a lot) fat on the Zipp 303 rims).
I did not expect the instant increase in my average speed during my first 300 miles with the new 25c 4000s. I spent a lot of time confirming the circumference and re-riding favorite routes but the speed difference, even for a slow old guy like me, was immediate. Adding maybe 12 to 34 mph (nearly all flat 30 to 50 mile Sunday rides) probably isn't much to most folks but it was a welcome return of some free speed that the last few years has swiped. I just hope they are as puncture resistant as new Pro4s, I did have one center-tread glass caused flat so far (a rare event with the Michelins).
I've been using this tire for about 5 years...supple..enough to easily change out a flat on the road...my road flats decreased to about 1per year..and i ride 6000 miles per year..
Ive been using this tire for many years. It usually lasts about 12 a season (3000 miles) in front and is lightweight with a good grip on the road.
I ride long distance and large amount of climbing.
I've used Continental tires for over 20 years, from their touring tires to the Gatorskin and now the Grand Prix 4000S II, which I've used for about 5 years. I rarely get flats and or slices in my tires from debri. It would take a lot to convince me to use any other brand of tire.
Have been riding conti 4000 s for about six years now. Great handling and performance. Very durable and supple. I have wide rims on my road bike and changing tires can be a challange. These are the easiest ones I have found.
The Continental GP 4000 S II 700C Road Tire is the best road tire available. It has superb grip, rolling resistance, and puncture resistance. It is also very light. It does everything great and does not sacrifice one attribute (grip, weight, etc.) for another.
I really like the quality of these tires, tried them on the recommendation of a fellow cyclist. I have over 3700 miles and no flats.
I run tubeless on my main bikes. On my back uptravel bike I run tubes for reliability and because I don't travel with a compressor. These are the best tubetype clinchers I have ever used. Much prefer them to the Michelins.
You won't find a better quality tire that performs as well as the GP4000. Inflation at 105psi smooth rolling and 3500 miles standard.
Great combination of low rolling & puncture resistance, & also wears well. Sometimes not easy to mount, depending on the rim. Price was great, a daily special.
Super for training or racing!
As per usual one of the best tires for training or racing lots of grip comfy ride long lasting
Very durable with excellent rolling resistance. Not to difficult to mount
I've used many brand of tires butbgine the GP4000S ll profile the best (most road condition) tires. I live in Southern California but rode thes tires accross part of Canada, most of California coastline and in rain, snow, road debris, tough pavement, gravel, cattle grates and without issue, flats or other problems. I'm a female and fairly light but I've also had very few flats. I generally change my tires when they've worn down. I've had one side wall tear in 4 years. Needless to say I have great confidence in these tires.
Very dependable tire. Consider it bullet proof (I use it for tri's ... flats are a big deal). I highly recommend it.
I have used other highly rated tires that work well. I just seem to keep going back to the conti's they feel great and last a long time with very few flats. I started using 25's and lower the tire pressure to around 90 to 100psi and it really cushions the ride out.
Road Cycling, best tire ever used.
