MichelinA2 Airstop Tube(Return to Product Page)Add your own review
I used these tubes for years, then I quit biking for awhile. When I came back to it I tried some cheaper tubes to save a little money...big mistake. Of the 20 I bought, 5 had valve issues imediately and the rest made it one or two rides at best. My ride takes me through an industrial area (most of the way), but still. I went back to the A2s and I'm very happy with the quality and durability.
I run tires between 25 and 32mm, and these tubes are my go-to for all of them. My rims go up to 30mm depth, and I think that up to 4-5 more mm would still work fine. Not much to report, as I've had zero problems with these tubes and haven't gotten any flats lately.
I've been useing this tube for many years and have yet to find a negative side.They are easy to mount,hold pressure well,and not alot of flats.A great product.I dont use any other.
I use a racing bike as a commuter in the city. It makes it so keeping up with cars and riding on the streets is less rough. However, with all the bumps, potholes, glass, etc using full blown racing tires and tubes is a pretty bad idea. I try to find the balance of durability and speed. Right now I have Gatorskin tires, a PVC liner, and these tubes and things are going great. With this setup I've only had one puncture in the last 6 months (used to be one a week), and I can pump with High PSI to still have good performancedurability. The added rotational weight is present, but less than other tubes and the price is good.
I have been using these tubes with the Michelin Mud2 tires for cyclocross racing. They are most resilient tubes I have used. A small puncture only resulted in a slow leak and I was able to finish the race. I have pinch-flatted on one occaision, but that comes with the territory.
These, in combination with Continental Gator Hardshell tires have eliminated my frequent flat problems. These tubes are noticeably thicker than any other tube I have used. So they are going to be slightly heavier. But man, do they give confidence that I'm not going to have a lot of flats. These are the only tube that I have ever used that will hold 90 psi pressure for extended periods of time. I'm a weekend rider, and before using these tubes, my tires would typically be down to about 40 psi after the 1 week interval. These tubes are usually still up in the 80 psi range after a week.