Bike tube - Choose size 12, 14, 26, 27.5, 650B, 29, 700c bike tubes - road, gravel, mountain bicycle - All tire sizes - Presta or Schrader Inner Tube - Heavy duty latex - Bike tire tube - Bicycle tube

Good, worked as intended. Thank you

I bought a 3 pack of 27.5 tubes July 2020. The core was removable as per product description. 1 of the tubes was defective. I contacted the Seller and they responded immediately. Communication was quick and clear. They replaced the product immediately. It was delivered before I saw the email where they notified me that it was delivered. In business, I see complaints or concerns as an opportunity to impress a customer. They really did so. I would like to rate customer service 6 out of 5.

Updated review as of 10/28/2019: it's unfortunate that I can't split the rating between the seller and the manufacturer of the product. The customer service from the seller has be fantastic. They obviously take pride in their operation and customer satisfaction is a top priority = 5 stars. I did receive replacement tubes with removable cores and they worked as expected; great value for sure. However, the packaging is still messed up. My first order was labeled "removable" but the actual product was fixed. The replacement order was labeled "fixed" but the actual product was removable... Original review: The tubes came in perfect condition, except that they did not have removable cores, which was the main reason I bought them. The tubes had solid seals around the valve and all the seams looked durable as well. If you don't need removable cores, these are a great option for you given the quality of the construction and the cost. These could have worked for me if the value stem was about 10mm longer to get past my Jet+ 4 wheels. As it is, I'll have to return them and try again. See pics showing advertisement of "removable core" and the fixed valve.

Inner tube ws delivered on 4-11-20, Inner tube was installed and I rode the bike many times w/o problems, last time on 6/16/20. Today 6/24 the tire was flat, did NOT hold pressure, I took the tube out of the tire and quickly found the hole where the valve stem is attached to the tube. for the photo I inserted a thin piece of grass into the hole. With the defect at the base of the valve-stem, it appears that this inner tube can not be repaired. This is a “Freedom Bike DuroLite Tube 700 x 28-32 c I’ll see if I can find a replacement tube from a different seller/manufacturer. This tube came with a 60 mm valve stem, which my rim does not need. I wonder if a 40 mm valve stem could give a small benefit. Hey, I am getting practiced in changing inner-tubes. The 2 replacement tubes are the perfect size, and they hold air pressure very well. It’ll be interesting to see how many miles(Biking time) I get on these tubes, time will tell. Konrad, in St.Louis/MO

I'm not sure what went wrong with these tubes ... but I noticed on using the first one that I got a flat after a couple days. I replaced it with the 2nd one, and it was flat overnight (not having even ridden the bike). I then replaced my rim tape, triple checked that I had no rock or thorn sticking through my tire (nope). So then I carefully tested three of these inner tubes without putting them in my tire, and two of them had puncture holes that leaked air quickly, and one leaked from one of the seams. I threw out the last (6th) one. Something is going badly wrong in the manufacture of these inner tubes!

The tube was excellent! I was just paying attention too much to the size and not so much. The valve, which was also excellent. By the way, that valve was spectacular. It's one of the best valves I've ever seen. I saw this valve.I said, wow, that's the most spectacular valve i've ever seen, but it's the one that I can't use...

I ordered the three pack for 29x2.40 tires. The description said non-removable cores, the box doesn't specify, but they ARE removable. It's a good thing because one of the three was bent (I replaced it, see pics: bent=left, replacement=right). All three held air and passed the underwater, no bubbles test, then rolled back up neatly into the box for later use. Note: The replacement valve core was mine, they don't come with spares. The bend in the valve core may not have even been severe enough to prevent use (did not bother testing), but still, not good on that one.

They are backup tubes ready and waiting use.