P Zero SmarTUBE 23/32-622, Presta 60mm Valve - Ultimate Puncture Resistance, Low Weight, Road Bike Cycling Essentials - Bicycle Tire Tube

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.

These are fantastic ! Unlike butal tires that looses 20 psi every 24 hours. These just dont lose ANY AIR ! UTTERLY FANTASIC!. Now, I see people having trouble installing these. Well I come from a butal tube background that is slippery as all get out so I've learned how to install butal tubes and these aren't any differant. I DO NOT partially inflate. That my friends is bad advice. I also use corn starch to install tubes AND TIRES. They just slip on, well most of the time. DON'T INFLATE AND DON'T TWIST THE TUBES. For goodness sakes put the wheel on ur lap and install the tube & tire the easy way. And don't forget the corn starch. I actually have a dry paint brush that I use to "paint" the corn starch on the inside of the tire and I put corn starch in a zip lock bag and put the tubes inside and shake the heck out of it until the tube is coated with corn starch. Then and only then do I start my tire install. It usually slips on without any tools. WITHOUT ANY TOOLS! when I carry spare tubes with me on my rides they are wrapped in thier own corn starched zip lock bags ready to do their job when the time comes. Take ur time and do it right. It's a sucky job and u don't want to do it twice, or 3x if u really scew up (if u dont check the inside of the tire 4 sharp objects). Do this for yourself and avoid the aggravation when a flat takes place. USE CORN STARCH ! I will buy more of these particularly for the rear wheel because these are almost 2 oz lighter. Less weight easier to turn over. One more thing, I use these on rim brake wheels without any problem. I know some poly tubes will melt if used on rim brakes due to excessive heat. but these tubes seems to handle warm to hot rims during excessive braking. I've use them I trust them I will buy more Pirelli tubes.

The tubes have been absolutely great. So great I did a review. First they are very light and packable. I am using them on my racing bike because I feared that less expensive options would not have the same quality. After racing and riding a few hundred miles on them I don’t think they head and shoulders above less expensive options but they are still a great product. They retain air so much longer than latex tubes even at higher pressures. I would recommend them but at an equal level of less expensive options. Update: They punctured very easily which caused me to abandon a race. I can no longer recommend these tubes. They are overpriced junk, the current cheap Chinese tubes I am running have lasted much longer.

Tube is working great and it arrived in a timely manner.

I run my tires at about 80psi, and these hold air roughly twice as long as the other butyl tubes I've used. Given the time between punctures I'm willing to state that these are probably more puncture-resistant as well. The only punctures I've encountered with these tubes are a furniture staple (and nothing's surviving that), and a puncture so small that it wasn't visible even after I discovered where the air was escaping from. In both instances I did not notice I had a puncture until the following day since the punctures were small and didn't rip at all. Not sure how people are having difficulty installing these. They work the exact same as any other tube and you would have to be incredibly careless to wreck them on installation. My only complaint is the plastic valve stem material. A lot of people put electrical tape over the valve stems when they have carbon wheels to prevent rattling. If they had a rubberized or fiber coating (like modern automotive wheel well inserts) it would eliminate the need to do that and I would give it a 5 star rating.

So far so good. Nice light weight option. I have only put around 100 miles on them so far, but no complaints. I don’t actually notice a big difference in ride quality except I think they roll a little faster than the old standard butyl tube. I have tubeless too, it’s just a lot of maintenance. This seems like a nice alternative.

Installed in my 26 mm wide road bike tires. I found them easier to work with than butyl tubes. They retain air pressure much better than either the butyl or latex tubes I've used. Their ride and performance is great, but one tube (rear wheel) developed a tiny pinhole leak after just a couple rides. I successfully patched the leak with the Pirelli TPU specific patch kit. Then, after another 500 mi or so, the same tube developed another leak in a different place (the patch held fine). The leaks were on the side of the tube in contact with the tire, but I could not find anything in the tire casing that would have punctured the tube. Both leaks were super tiny - I could only find them by dunking the inflated tube in a bucket of water. Both leaks resulted in a complete loss of tire pressure an just a few minutes. Verdict: light, but does not inspire a lot of confidence.

The installation process was easy enough. The bright yellow color makes it easy to see danger of getting caught between the bead of the tire and rim. I am not sure about performance as my rides have been on rough chip seal. I will know more when I get to ride on some "road candy," smooth asphalt. These tubes are lighter than latex but may not be as lively, as the material doesn't seem as supple. That would affect ride performance but also makes installing easier.

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

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.

Dopo oltre 4 mesi di uso, con circa 3000Km fatti, posso solo essere entusiasta di queste camere in TPU. Zero problemi di qualsiasi tipo. Basta fare attenzione al montaggio e a non violentare la valvola quando si gonfia, evitando compressori/bombolette etc (dunque sbalzi di calore eccessivi) e non si avranno problemi. Combinati con dei pneumatici di alto livello, non tubeless-ready, come i GP5000 Clincher, la leggerezza è massima e la scorrevolezza davvero eccellente. Credo che si possa anche osare con quelli più leggeri, ma sarebbe meglio, a mio parere, usarli con pneumatici più robusti (tubeless ready), ma a quel punto quel che si guadagna in peso con le camere d'aria, si perde con i pneumatici. Questi da 45g sono il compromesso perfetto, e di certo non mi fanno rimpiangere lo schifo provocato dal lattice, che per l'uso stradale è piuttosto inutile. In definitiva: molto consigliati

Super