As noted in other reviews these tires are extremely hard to mount. Mavic Kyserum wheels. 60 years old cycling all my life and running tubeless about 4 years now. I almost returned them. The hardest tires I have EVER installed. But I ran 4000's and Gatorskins for years before going tubeless and I so wanted to try the new Conti Tubeless. I even heated them up in the oven. (don't tell the wife) Finally success with brute strength, tire levers, soapy water and wondering if I was going to bend my rims with the effort it took to mount. I have about 50 mile on them now. The ride is very nice and plush but firm, compared to the OEM Mavic tires (surprisingly good) and Hutchinson Fusion's (fragile, ripped a sidewall). Rolling resistance seems to be extremely good. I really like them, but not sure if I would go through the ordeal it took to mount them. I think slipping an emergency tube on the road would be extremely had to do. 5 stars for the ride.
After using French manufactured tires for a couple seasons, I've returned to Continentals after I got stranded on the side of the road one too many times with gashes in the sidewalls. I'm running the 28s on Bontrager Aeolus rims. The handling is fantastic, and I haven't had any issues despite riding them in winter conditions with gravel on the roads. The tires stick in curvey mountain descents, but the ride is still comfortable.
I have Mavic UST tubeless Cosmic wheels and the came with the Mavic tires. Those tires are pretty easy (for tubeless) to get on and off but the puncture easily and I though I would try the Conti 5000s. Broke 2 levers, hands are hamburger and I still could not get them on the rims. You gotta know that when they fail to seal (and that DOES happen) it won't be any easier on the side of the road.
I've been using Grand Prixs for about 10 years. Great traction & few tire-related problems.
While the 5000 was recently released, and is 'new & improved,' there was nothing wrong with the 4000 IIs and the reduced price commonly found on them now makes them a really great deal. I will continue to run them on my road bike for years to come.
I have been using GP4000 tires since their introduction, for a total of somewhere in excess of 25000 miles. They are tough, light, and terrific at cornering in all road conditions. I generally get about 3000 miles out of a set of these tires before the wear dimples disappear. This riding over largely chipseal roads. The only problem with these tires has been pointed out by a few reviewers, has to do with the sidewalls being somewhat fragile. I have only had to throw away one tire due to a sidewall puncture. It was upsetting due to it being a brand new tire, but I doubt that any tire would have survived that particular road hazard. I consider these to be about the toughest tire out there. I will continue to use them as long as they are available.
Just purchased these in April - 2nd set on my Trek Emonda SL6 w Aeolus 5s - I purchased the reflective tires this round - they are awesome at making you even more visible & my first ride out, I picked up a carpenter's finishing staple. No tube puncture or anything! I highly recommend these. I'll probably upgrade to the 5000s on the next round.
I have used these tires for both recreational riding, racing and race training. They have been good performers with reasonable wear and are solid in the corners for both criteriums and high speed descents.
I bought these to replace a set of Schwalbe Marathon Plus tires specifically because I was looking to reduce weight and rolling resistance. Based on research, this tire seemed to check both of those boxes while still providing reasonable puncture resistance.
These tires run incredibly smooth and effortless. As for puncture resistance, I just returned from a weeklong bike trip covering 500 miles of rural roads littered with sharp rocks and steel belted tire shards and didn't have one puncture. I even did a little gravel riding (less than 10 miles). I cannot comment on traction in the rain as I plan to use my Schwalbes for winter commuting, however due to the low weight and very low rolling resistance, I very highly recommend these tires for any type of distance riding (multiple day trips, or centuries), they exceeded my expectations.
Conti GP 4000 S II, great all around tires. I've been using these for racing and riding for the past two years. I would say I get about 2000-3000 miles out of a tire, so they do last a good while. They handle great and are nice and fast.
They also provide very good puncture protection for a high performance tire. I know there are other 'racing' tires on the market, but they are very light and thin and certainly put you at risk for flats. From my past experience, there are few things that take you out of a race as fast as a flat tire.
If you balance price, performance and protection I don't think there is currently a better tire on the market.
I run the Continental Grand Prix S II road tire on three of my four road bikes. They simple are the best tire for the money. Good rolling characteristics, puncture resistant and long lasting. I have tried other brands with no where the success of these fine tires. Highly recommended for your road cycling both racing and training.
This tire has just the right amount of road-gripping firmness while delivering a very comfortable ride. I'm very happy with the feel and handling. Its a big improvement over what was on my road bike previously.
Like many cyclists, I've tried a lot of different high performance tires looking for that one tire that excels at everything. In the end, I use GP4000's on all of my wheels. A few tires have a more supple ride, a few corner better. Other tires are miserable to fit or have weak side walls or get lousy mileage or are prone to flats. GP4000,s just inspire confidence. They corner well in wet and dry, I get excellent mileage, (3,000 mi. plus), average about 1 flat per year, never had a side wall problem and they have relatively low rolling resistance. I've hammered these tires on So. California roads and the GP4000.s always get me home safely.
Have ridden on this tire for 18 months in 28 width. Have always ridden 23 to 25 but after doing some more research decided to try the 28's. As with many things in life it's hard to admit that everything you thought you knew was right is proven wrong when you finally give in and try. These tires are not slower, they might be a little heavier but not enough to make a difference for most riders. Their toughness is amazing. I finally decided after a summer of riding to buy another set in preparation for spring. The current set has multiple slices that would have flattened other tires.
I like the 4000 S II 700C tires well enough that they're the only ones I buy. I bought two on sale at half price to keep in reserve for when the others wear out-eventually. The price was too good to pass up on tires I prefer.