Continental Race 28" Wide 700x25-32c Inner Tubes - 42mm Presta Valve (Pack of 2 w/Conti Sticker)

These are quality Continental tubes. Continental are my go-to tubes I use for emergencies in all my bikes. They work well, are always uniform in size, and last long a long time in storage. Being uniform, they install easily. I buy these in multiples of 2, because I always seem to go through 2 at a time. The don’t weigh much, and are compact in size, easily fitting in a bike bag. I recently had to fix a flat on my road bike, and had to pull a Continental tubes that had been in a seat bag for at least 5 years. It pumped up easily and got me home.

Very cool product — very space saving and light — very few flats as long as I keep the pressure over 80 psi. No flats in about 6 mo. 28mm continentals. Otherwise expect snake eye punctures if you hit a bump. Some air loss, so I have to refill every 2 or 3 days. I have had mixed luck with the tire repair patches. I recommend just using a new tire if you get a flat.

Continental never misses! These are great for the price, hold air well, easy to install, have literally no weight to them, and even in extreme temps do not deflate well. The valve is a nice quality and it’s impossible to Push the valve in unless you are being a monkey. Five out of five, just buy them.

I think these are good tubes. However, one of them had a bad presta valve. I had a presta core remover and some new presta valves to replace it with so, it's not that big of a deal. I think it's pretty common to get a bad presta valve on any brand of tube. I would have given it 5 stars if it didn't do that. I will still recommend the tubes but, have a presta core remover ready with some new presta valve cores.

So far so good. I replaced my tires and inner tubes last season with Continental Gatorskins and Continental Race Tubes. I had not put many miles on when I unexpectedly had a flat in the rear. This was perplexing as the tires and tubes were so new. I removed the tire and found that there were two small slits(3/16") in the inner tube that were about an inch across from each other. They appeared to be on the seams of the inner tube. Maybe it was just a bad tube. Continental, if you're listening, you owe me a new tube. With that said, I replaced the tube with a new Conti Race Tube and all has been well so far. These appear to be very high quality. Rubber felt good and "fresh" if that makes sense. The Conti Gatorskin tires are also really nice too. I ride in an urban environment where the roads are not good(lots of bumps and sharp road gravel) and these have held up so far. Time will tell if these last, but I'm happy so far. Price seems okay when compared to other quality tubes. I inflate to around 85 psi. Install tip, I put a little bit of silicone grease on the inside bead of the rim to help promote tube movement during mounting and tire inflation. MAKE SURE YOU DON'T PINCH THE TUBE WHEN INSTALLING THE TIRE! Happy riding!

They look fine but I haven't fitted them on a bike yet.

As a seasoned cyclist, I've been running Race 28 tubes for years but recently found this 700 x 25-32 C size (140 gms each). Normally, I would use the 20 - 25 C because they were lighter by 40 gms. Trust me, you won't notice the weight difference and I would rather have the durability of the bigger tube. With "minimal expansion and stretch" in a 25C tire, these tubes last forever and less prone to flats. They fit nicely in a 25C tire as long as you tuck them carefully during tire installation. Use the metal tire irons as they work best so as not to pinch flat the tube. I know what your thinking, "Use metal irons on my aluminum or carbon rims? My experience with the Park plastic tools is mixed. They can get damaged by aluminum rims and cause a pinch flat during installation because they are so wide and soft. I always had to debur at least 1 or 2 plastic tools after I was done. The metal spoons are super smooth and thin and do work the best in my 30 years of riding. Patience, practice, take small bites and powder your tubes before installing them. Treat yourself to the German quality of these tubes and you'll have piece of mind.

I bought these to go with new Continental Tires as others had recommended. Seem like good tubes, but one of the valve cores is bad. It was leaking air from the first time I filled it. It improved some with higher pressure and screwing it closed. I removed the core and found the end of the inner seal to be bend from the factory. That should not have passed quality control for a Continental brand tube. Maybe I should just use cheaper Bell inner tubes, because none of them have come with a bad core from the factory. The one with the good valve seems nice.