P-Zero Smartube Bicycle

So far, this particular model has performed remarkably. I only suffered one puncture and that was after the 1000km mark, hitting a very sharp piece of black metal which also cut deeply in the tyre. I use it in combo with a Pirelli P Zero race which has a moderate/decent amount of puncture resistance, and going through some gravel and very uneven and dirty industrial paths.

Great tubes — light, effective, hold the pressure as good as butyl ones (maybe even better), puncture resistant, stylish. Not a single puncture for the whole season. I gave two of these as spares to cyclists who got punctures on their tubeless setups. I used Tubolito before and that was a nightmare, they got damaged during installation very easily and also frequently got punctures on the same tyres. I love the look of full black valve too. The only downside I see is as the valve has no threads and fixing nut, it can rattle on some wheels, but a small piece of electrical tape solves the issue (better to put it before the tube installed into the wheel)

Similar ride feel to latex, but lighter and don't need frequent pumping up (unlike latex.) They take up little room in a seat pack. Like some other tpu tubes, they seem to suffer from fragile, short life valves.

I bought four of these tubes a few weeks prior to using. of the first two tubes one had a slow puncture where the hole is in the Pirelli logo that is embossed on the rim side of the tube - obviously a manufacturing problem. So one out of three tubes is unusable due to faulty manufacture and the fourth I haven't tried yet. For this item Amazon don't provide any mechanism to contact the seller and complain, so I recommend DO NOT BUY.

Good value

Very Good!

Ordered 3. Installed 2. Front tyre holds pressure well, rear drops 40psi over night. I have checked, no punctures found, fault must be with the valve, but again - no bubbles in leak check. Hopefully the replacement is better as I love these tubes. So smooth and quick when riding. Amazed by the difference from butyl tubes. Hope Pirelli sort out the issues with the valves/cores.

Great product

Nagelneu verbaut. Verliert Luft. Ärgerlich!

La verdad es que van muy bien. No las cambio por ninguna otra marca.

良い商品です。タイヤが軽くなり走りが良くなり快適です

best of the best

Works great but I did have a rough start. I installed this on the road after getting a flat with a regular tube. This tube also went flat after 1/2 a mile. It wasn't the tubes fault, the tire had a cut in it and I should have protected the tube from the cut. Later I patched the tube but I filled it with air before installing back in the tire. That was a mistake, don't do that. This tube expanded so much that the tube split open and was ruined. All my fault. Lessons learned. I bought another new tube and tire and it has been good since. Been on many rides, no issues.