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

Review update: The merchant quickly responded to my initial poor review. Offered a replacement tube. Not only did the merchant replace the tube it was tested before shipping to ensure it wasn't another dud. S*** happens. Thank you for making it right. That's impressive service. I highly recommend. Thank you.Not holding air. I have to pump up the tube pretty much every day, and I am only riding to work and back, 6 miles a day at the most

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.

Had been buying Goodyear tubes from Walmart. Have had multiple flats with them and multiple patches, mostly caused by devil head weed thorns. Saw the DUROLITE Tubes on Amazon November 2nd. Decided to purchase the 6 pack of tubes due to free shipping with 6. Cost per tube was $6.47/tube with tax (CA). The wall thickness appears to be thicker than the Goodyear tubes from Walmart. I ride from cardio exercise and ride only on paved roads. As of this review, I have had no issues with flat tires. Time will tell on how well they perform over the long run (ride). For the price and quality I have experienced to this point in time, I would recommend these tubes.

After providing a detailed review (see below) showing the problems with the various tubes as I attempted to install the tubes, the seller reached out to me. He promptly refunded me for the entire purchase, and as courtesy, shipped me a replacement 3 pack of tubes as a good faith gesture. I have updated the review to 4 stars because of the great customer service. I had already purchased replacement tubes from another source and successfully installed those so i haven't tested the seller's replacement tubes and therefore can't speak to their quality. CP Previous review: (All three tubes had holes in them prior to ever being installed. In addition the valve stem on 1 of the 3 (i bought a set of 3) was bent and defective and was missing the retaining washer the seats against the bicycle wheel frame. Do not buy!!! Chad P)

The tire tore along the seam immediately after I inflated the tire. Also the size is listed as 26x2.1-2.6 and even stamped such. But it's imprinted 26x1.95-2.125. The manufacturer contacted me and stated "The tubes are stamped with a different size than what is printed in white on the tube because the rubber mold has a permanent stamp on it with that sizing. The "26x1.95-2.125" size shows up on every Schrader tube that this factory produces, regardless of size. Again, I assure you that this tube is to 26x2.1-2.6 specifications" If it's true or not, it's still an inferior product that keeps separating at the seem. I have never had this much trouble from an inner tube. Buy a different brand. This one is awful.

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 cI’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

There were a couple of puncture holes in one of the tubes. Might have been a part of the manufacturing process' margin of error? Two holes, pretty round, about an inch apart. Inflate the tube before you install it into the wheel so you don't get caught with a preflat tire after having installed the tube.Other then the one (so far) tube that's flat, these seem pretty darn good esp. for the price point.

I was trying to rewrap the tube and the valve wouldn’t open. I am so glad I didn’t find this out in the road. Update; the company contacted me and made it right. The valve threads seemed to have an issue and I was assured it was an isolated incident so I will continue using this vendor. Very impressed

There is a problem with the manufacture of these, a few of the 9 tubes I bought had hole on the first inflation.

My son is a crazy biker and always came home with at least one blown out tube. These seems thicker / heavier and since fitting he has had 4 outings without a flat.

Excellent!