Continental Race 28 700x25-32c Bicycle Inner Tube Bundle - 60mm Presta Valve - 4 Pack w/ Conti Sticker

I bought these last year. Stan's No Tubes Tire Sealant is easy to inject into these tubes because the valve is removable, so I run it with an ounce or two of sealant per tube. There have been a couple of times that I've run over stuff and started to get a flat, only to have it seal up before I lost much As a result, I never had to change a tube while I got flats because I was able to finish my ride despite the flats. The work Stan does for me is a miracle. )

I am about to switch wheels for a carbon set and wanted new tubes for them. There's a good chance I could re-phrase it I'd like to keep using the tubes I'm using now, but I just want everything to be As a result, I bought the same tubes again, as so far they have been great.

Belle Schwartz

| Feb 24, 2021

After having a punctured tube on my road bike, I took out a brand new Conti tube to replace it. It's a surprise. There was a hole in the box just after it was opened. I rode back home on my bike (fortunately I was only a couple of miles from home). I took out ANOTHER tube from the brand new The tube was changed, and the air was inflated. Not at all. The tube had a hole right next to the valve, so I pulled it out. There might have been something inside the rim for those of you who think so. It was a thorough inspection for me. Detailed descriptions of the tares next to the valve, and the place where they were placed. It looked like the rubber on the valve was old or something, and that the valve was almost separated from the It's a terrible terrible product. I'll stick with my trusty Michelin.

Aubrey Reynolds

| Dec 01, 2020

In light of some reviews that strongly suggested the tubes were defective, I decided to inflated them to see if they worked. The second one I inflated exploded less than a minute later. Not only did it leak, but it burst as well. This caused the tube to split in half when it burst open. The first tube I have used has never failed in over 15 years of cycling, on both 8-hour rides and nights rides A person who drives 10,000 miles a The ballooning of one section was unusual and prompted me to suspect there was an issue with the tube (evidence of uneven tube thickness or I took a couple of used tubes from my wife's old Allez to use as a comparison. In spite of the fact that the tubes had a few thousand miles on them and were over 5 years old, they still held air and inflated perfectly. Specifically, for older tubes, there's no reason to believe that new tubes would explode as soon as they are inflated, or that old, used tubes will be more reliable than brand new ones. This is a quality control issue that needs to be addressed quickly. This is the last time I'll buy these.

Harley Payne

| Feb 08, 2021

My favorite part about rubber is its feel. Puncture resistance is a big plus for me. The valve stem can be removed or replaced and is either a blessing or a curse. You should consider it a blessing if your valve stem breaks. You can damage the valve stem if the threads of the stem come out while you are pulling off a pump and you remove all the air from the tire. The compression fitting on most pumps is standard, so this shouldn't be a concern. It seems to me that I should have a different tube for pumps "threaded" onto the valve stem, and I have indeed changed broken valve stems on Continental tubes as well as thrown out tubes with perfectly good rubber but with broken valve stems on other brands before.

Ella Conrad

| Mar 09, 2021

I was having a flat every other week using the GP 4000s II before the GP 4 Seasons. My initial assumption was to blame the tubes 100%, as I was never able to find a sharp object or an opening I used to worry about changing tubes in the middle of a ride until I switched to the GP 4 Seasons. I still carry one spare tube, one CO2 cartridge and a presta adapter,.

Lilliana Obrien

| Nov 15, 2020

As far as I remember, I reviewed this bike tube previously. I was "just pestered" by the seller to write a review. If I have to rewrite this review, then that isn't a major issue. As far as I can tell, the tube is thick. I feel and see that this bike tube is THICK and SOLID at first sight and touch. I have researched the branding of the tube/mother company, and it has been around for some century. I keep checking the air pressure in the tube nearly every day, even when my bike is still sitting idle in the A high level of air retention is achieved. It is quite a deal to pay $32 for 4 tubes, however the stem of the tube is somewhat This issue is not a major concern, however. My preference is a tube that is thick, solid, holding air, etc. If it meets these criteria, I will buy it again and again. I would like to thank the seller for his generosity. A very happy new year to you all.

Clay Farrell

| Apr 09, 2021

was a little hesitant to buy these tubes because many reviews said that they failed right away. However, I do not expect it to fail, so it was worth a try. The tube failed at about 70 PSI and all the air leaked out when I installed one and started pumping it up. To start, I'll probably use the extra Kenda 23c tubes that were in there. Air is at least held in them.

Colton COLES

| Aug 10, 2020

In order to properly mount my new carbon wheels, I needed tubes that have a longer stem. I picked up four tubes from the local shop, from whatever It may be Q or something of that nature. Well, I went ahead and bought the Q tubes against my better judgment since they were out of the Contis I have always purchased. Well, 3 of those 4 initially purchased Q tubes had valve issues either they wouldn't hold, or -- This is a one-note note The balloon blew up! The local shop refunded me and I picked up these instead after I had none of these issues with Conti's in the past. The bike has been with me for a month or two, and I've had no problems Whether it's tires or tubes, Conti just produces the best. In this case, it really doesn't matter what you choose. Don't let headaches get the best of you! Invest in Conti today!.

Eileen Hale

| Oct 23, 2020