ContinentalGrand Prix 4000 S II 700c Road Tire(Return to Product Page)

I ride long distance and large amount of climbing.

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.

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.

As per usual one of the best tires for training or racing lots of grip comfy ride long lasting

Road Cycling, best tire ever used.

Thanks WesternBikes for saving me money!

I purchased these tires ignoring the flat tire reviews over the superior performance reviews. No doubt, these are fast tires but with a HIGH cost - FLAT TIRES! 200 miles 4 flats. I inserted liners - still flat tires. I ride on chip seal roads - never had a problem until now. Going back to Gatorskins!

I ride 250 - 300km a week on roads. I spent more time repairing flats than I did riding. Took the tires off after approx. 2 months of use. I was getting flats weekly (sometimes daily). Only once did I find a reason for the puncture (staple). I replaced them with Gatorskins and haven't had an issue with around 2000 km. on them.

I needed new tires and went the Gatorskin route bec I did not want to worry about flats. They were fine but I could tell how much slower I was. I am training for Ironman NC. So I had long 100 mile plus rides where I was just slow. I had a friend tell me about these tires and I saw they were on sale so I bought them on this site on deal. Best decision I ever made. They are fast! Same route-40 miles, same weather conditions, same time of day and I was 2 mph faster on these tires. Love these tires.

I ride the roads in Washington County, west of Portland OR, and have been doing so for 20 years. I usually get 1-2 flats a year, but never anything that actually damages a tire. That all changed with the GP 4000S.

In the first 70 miles, the rear tire encountered 4 flats, not pinch flats, mind you, but general road debris. The last one tore the tire so bad it needed to be replaced. AFTER 70 MILES. 7 - 0.

Front flats have been extremely rare in my experience. That all changed with the GP 4000S as well. I kept the GP4K on the front, and suffered 3 front flats in the next 350 miles. The last one tore the tire enough to make it unsafe to continue riding it.

I will say that when they stay inflated, they do provide a nice ride. Just keep a spare tube (or 4) and a boatload of patches - you'll need them.

I ride 70 miles a week around pdx-Tigard-Beaverton area which is filled with rocks and glass. Everyone that has rode on Scholls Ferry knows what I'm talking about. I haven't put too many miles on these yet, but so far they are grippy as heck! Way better than most tires I've ridden with. One thing that I would warn people about is putting them on. They're super tough to put on the first time, like no joke. So if you can, take to WBW and let them help, or your LBS. it took me 40 min to put both front and rear on and my hands were tired and kind of ripped up. BUT, besides that, they're amazing. They're also really quiet, even more quiet than the slicks I was using. Do not hesitate to buy these over gators...this tire is just as good and faster. The black chili compound seems to be the real deal and these tires rock.

Fantastic tire. Durable, fast, and great for conrnering.... nuff said. -)

I was going to order 25's from other manufacturer, but knew that 23's from Conti are the same size. They seem to be comfortable and fast. Haven't put on many miles. If you order 25's from Conti, be aware they are almost 28, so check your clearance.

I bought these tires (25c)based on the stellar reviews not just on this site, but every other site I scanned on the web! And, I'm glad I did. I mounted them a week before I rode a 68 mile gran fondo in the rain, and the grip on the wet asphalt was superior to my old tires. Now, a month into riding on them, I will probably not mount anything else.

I know several reviewers have stated that the rolling resistance is a lot less with these tires, and there is even a web site that makes the comparison with other tires httpwww.bicyclerollingresistance.comroad-bike-reviewscontinental-grand-prix-4000s-ii-2014.

For me however, I really didn't notice that as much as I noticed the comfort and vibration absorption. So far I have been keeping them at around 110 psi and they are so much better than the stock Vittoria Diamante Pro Light, 700 x 25c that came stock on my bike and are only 12 grams heavier per wheel (my actual weights, not specs.).

Overall, I would highly recommend this tire to anyone who wants a solid all-around tire. Good grip, no flats (so far), low stated rolling resistance, what's not to like? Buy them.

Long lasting, great traction, very durable.

I've purchased many different makes and models or tires and these are by far superior. Westernbikeworks makes it more affordable as well..

They are fast and I love the way they feel on the road.

When I switched to continental 4000 S II tires, my speed increased. Very dependable tire. I also went from a 23 to a 25 which also helps having a little more rubber to the road and also increased my speed!!! You won't be disappointed with this tire!!!

These tires are durable and hold up well, I run slightly lower pressure to ride on rough chip sealed roads and find these tires hold up better than most while training. Increase pressure and use them for local organized rides as well. Good all around tire which I would recommend.

I like the overall road comfort on this tire! Was disappointed that I got a flat the first week I had them on!