2-Pack RideNow 700C x 18-32C / 32-47C (ALLRoad & Gravel) / MTB27.5/29 inch x 1.9-2.5 TPU Inner Tubes with 45mm/65mm/85mm Presta Valves Lightweight (Include Bike Tube Patch Repair Kit)

I have been cycling for over 45 years (yes I am THAT old). I normally ride on latex inner tubes (Vittoria and lately Silca). Latex inner tubes are comfortable, fast, lightweight and work well with my Fulcrum wheels. None of the mess of tubeless and most of the benefits. In a quest to reduce weight I purchased two of these TPU inner tubes. I do not intend to ride on them because I have read many reports claiming that TPU inner tubes ride harsher than latex and are noisier (my riding mates who use TPU inner tubes confirm this). As you can see from the attached photos, TPU tubes are much lighter than the butyl inner tubes that I previously carried in my saddle bag. The difference in weight is not huge, but in the quest for marginal gains, especially when climbing the local hills, every gram matters. So if you are looking to save weight, these are a very nice alternative. Finally, the tubes were well packaged, the mounting instructions were clear and the included patch kit was a nice touch. I highly recommend these!

Was skeptical about tunes tubed but I will say these are good tunes. They are tougher then I thought they would be having seen some rough roads snd going through a tire upgrade already. Hard to say if they are faster but they have not failed so that's a big positive. They are very light and compact and I wouldn't hesitate to carry them as a spare.

Used on gravel bike with Panaracer tires... mild gravel paths. Punctured relatively easily. Patch was easy to apply and worked-- went flat again after short ride. Checked over-- valve issue. Cheap valves that just leak after a short time. Bought expensive Pirelli similar tubes..... 2 months no issues. If they could upgrade the valve.. they'd have a winner.

These tubes are the worst bike tubes I’ve ever used presta or shader valve, MTB or road. They were incredibly difficult to get on, I got a pinch flat on the first tube. I figured user error, my bad, I’ll try again more carefully. The second tube was just as difficult. Once installed it repeatedly lost pressure via the valve core, the valve core came apart when I tried to inflate the tube again. I installed a new valve core only to find the valve stem isn’t internally or externally threaded so the cores don’t seal well. Additionally, floor pumps won’t grip/lock onto the valve stem to inflate the tube as there are no threads and the stem is rather narrow.The tubes are pink and the valve stems are clear… cool. Don’t buy them. They’re terrible.

the ultimate spare tube, I love how these take up nearly no room in my saddle bag and they still get the job done. I got my first flat last weekend and glad I was carrying one of these! I pumped it up with my hand pump and rode another 50 miles.

I have had more flats in these tubes than I would expect. They are more durable than butnyl, but sharp debris still punctures them. They are very light and are as cheap as other tubes. Hold pressure well

Completely different from rubber tubes. When you open the box you will find a plastic tube that weighs next to nothing. Plastic valve too. These fold up to a very small size. Installed in Vittoria 700x25 tires on alloy rims with disc brakes. Mounting was easy . Inflated to 80 psi. They ride just fine but long term reliability yet to be determined.

Love it very light weight but unfortunately not durable. After riding for 300 km it started to leak and the nozzle was broken. I tried another one with metal nozzle, see if leakage issue can be fixed. My tyres are 40-406 48psi

It didn't work in my case. I was looking for and alternative to tubeless that is just as light. After installing the inner tube I was disappointed to realize the next day that the tire was completely flat. I guess the material it's made off being so thin doesn't hold air for too long.

I bought 4 TPU tubes and had to return 3 of them because they leaked. In the end I went for the more expensive Tubolito TPU tubes (yes even one of them was damaged straight out the box!). So I would say it is very hit and miss at the moment.