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.
I have no complaints with the ride or performance of these tires. (And my old bike has tubulars.)
I initially went about 2000 mi before I had a flat. The same tire then had another flat shortly thereafter. I put on a new tire when I changed the last flat. However, the new tire wound up having a sidewall tear after about 200 miles. So I would have to give durability a mixed evaluation.
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.
Had been riding Vittoria for many years with no issues, but I decided to change to a highly regarded tire from the competition. When I mounted it, it checked out fine - no out-of-roundness or wobble. But after less than 1000 miles I started feeling a thumping with each tire rev. I found a serious bulge on the sidewall. I'm not aware of any abrasions or incidents with the tire prior to this, but decided to scrap it. Sadly for me, the tread still had lots of rubber left (and this was a rear).
So add my name to the fairly long list of reviewers who had sidewall issues with these tires.
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.
Ok, so I've ben riding Conti tires for about 10 years... always went back because they were so damn reliable! The last road tire I ran was the GP4000 and performance was flawless in all riding conditions (e.g. training, racing, cobbles, rain, sand, etc.). The grip and feel of the GP4000 was perfect, and I literally NEVER had a flat due to the tire (had some issues with tubes and a pinch flat once, but no puncturesblowouts). The last time I replaced my racing tires though, I decided to give the GP4000s a try - BIG MISTAKE.
Since switching to the GP4000s, I've had 2 puncture flats and a sidewall rupture (fortunately not a complete blowout) on long hilly rides around the SF Bay area - and all within 3 months. The roads around here are generally pretty good, sometimes a bit of debris (from falling rock or wind blown sand) but nothing I would consider hazardous by any means.
I recently switched to the Specialized Armadillo Elite (only thing available at a LBS the night before a race when I noticed the Conti sidewall failure), and have been quite happy so far. I'm generally not a fan of Specialized products, but no problems with these yet. It's still too early to tell if I'll never go back to Conti tires (kind of feels like losing an old friend)... but I'll definitely NEVER use the GP4000s again. Total waste of money! I wish I could recycle this garbage!
Can't really rate these positive or negative giving the circumstance. I hit some rough pavement and skid. The tire was unmountable, about a 4 stretch of it was totally compressed together, never seen this happen before, not the first time I've fell before. Just something to think about if looking for durability.
14 miles into a ride and I was loving this tire, it was just as advertised. Then at a stop sign waiting for traffic, I'm looking straight down to make sure the little rocks were just little rocks because it pays to watch what you roll over. Bam! sidewall is now pregnant, the tube didn't pop the tire did. That would be a first in 30 years of riding. Fortunately I was able to use a $5 bill to hold the tube in and limp slowly home. So much for German quality.
14 miles! I live in 60mph country and I get a tire failure at a stop. Almost funny, huh? Last week I'm talking to a guy says his wife broke her leg. Front tire blew on a bike ride. I asked if it was a Conti, Yep.
4000s 2?.
Yep.
Sidewall failure?
How did you know that?
Because it happen to me, but at least I wasn't moving.
Not funny anymore.
This is a follow-up review after six months of use. I run the 25c on my road bike and the 28c on my commuter. Based on Strava data, I have more than 1,500 miles on the road bike and nearly the same on my commuter. I have never gotten a flat on the road bike, despite the horrible pavement in the greater Boston area, which includes sand speckled with broken glass basically everywhere, plus cracks and holes, crummy lumpy pavement patches, and jagged exposed steel utility covers. Somehow the tires manage also to feel fast and deliver an amazingly supple, comfortable ride - much nicer than the Gatorskins which I used before. On the commuter bike I got two pinch flats - both times riding through dirt and large gravel chunks where constructions crews had messed up the bike path, and with 30 pounds of crap stuffed in the panniers. A number of reviewers have had sidewall issues, something that I would expect to reveal itself when a pinch flat happens. Maybe they are unlucky or I am lucky, but the sidewalls have held up perfectly. The only damage I can find is that the reflective strip delaminated on one 2 mm section. These are my favorite tires of all time.
Sonoma County's beat up back roads carry you to beautiful places that must be seen. Conti 4000S tires have been my preferred choice for the last 20 tires or so, maybe longer. They are stout enough at the 700 x 25 size to take on the potholes, and are fast enough to gain speed over the occasional smooth sections of roadway.
The ride feel is not as good as Michelin Pro tires, but cut resistance is a lot better. I like the Pros in a crit type environment, but prefer these Conti 4000S when I need to take on the elements on remote county road climbs. Going over the geysers road, King Ridge or over the Mayacama range to drop down into Napa County can stress your best gear - and these tires stand up.
The sidewall issues I've read on this blog do seem to happen more than the previous style, straight up 4000 without the S. I'm not sure why that is the case. But to mix fast, with take a thumping, go conti 4000s.
