4 Pack 29 Inch Mountain Bike Tube 29 x 1.75 1.95 2.0 2.1 2.125 2.2 2.25 2.3 2.35 2.4 Presta Valve 48mm / Schrader Valve 32mm, Butyl Rubber Bike Inner Tube

I got these as backups for summer bikepacking. Yes I need to convert to tubeless, but not until after I go through these. I felt like this was a good value. Nothing too special, just the right tubes for the right price.

You can get good tubes on jenson for 5 each with free shipping. So a lot less than these

It's nice they come in a 4 pack, and they do indeed fit my 29 inch tires. I always carry a spare tube (even riding tubeless) because you never know. I got caught at the bike park a few months ago with a popped tube and tried to patch it, it didn't work out. So now I can carry a spare in case that ever happens.

The tubes are fine, but there is no removable valve core so don't expect to be able to put sealant in it

I've used these in the past with no issues so I knew what to expect and once again the tubes did not disappoint. They're easy to install and hold air nicely, no slow leaks at the stem, and are slightly heavier duty than a standard butyl tube. I use these with the green tire liners and almost never get a flat tire. Even if I do, the tubes are easy to patch and repair.

2 of the tubes were useless upon arrival. The one I put in the front tire just popped, first ride. Re installed, the rear just popped??? I'm pretty well knowledgeable about airing my bike, never popped tubes before, so these are justc r. a.p.

This four pack 29 in tubes are great! I had others in the past and they didn't feel good quality but this one is great it's thick and strong. I have been using heavily and had no problems. This four pack is good for replacements and a great price! Really recommend!

I ride mostly road bikes, but recently got a 29er MTB, which meant I need some spare tubes as backups in case I get a flat that I can't repair. The roadie in me was tempted to get the TPU inner tubes that are so darn light weight, and I may still eventually do that, but it's hard to justify the additional expense for a spare tube on a bike that I don't ride a ton.These are pretty standard butyl inner tubes. They are definitely not lightweight, with a single tube weighing in at 278 grams, or just under 10 ounces. Yikes! The tube is beefy though--far thicker material than a typical butyl road bike inner tube, which makes sense that you're more likely to encounter longer thorns off road when mountain biking. In addition to being heavy, they aren't tiny either and will require a decent size bike bag to bring along with you on the trail if you want to fit anything else into that bag as well.I got the version with Presta valves, since that's what my rims take. As the product listing photos make clear, these do not have removable valve cores. That's a bit of a bummer, since sometimes a valve core will get bent or just not seal properly and it's nice to be able to replace just the valve core rather than having to trash the whole tube. But these are bargain tubes, so it's not a deal breaker. On the positive side, the package does include three plastic tire levers to help with removing the tire; they seem plenty sturdy, so if you don't already have a set or want a spare set to stash in your bike bag, car or gear bag, it's a nice bonus.I have no reason to doubt that these will work just fine, but once I put them into service, if I discover otherwise, I will update my review.