SCHWALBESV17 Inner Tubes 700 x 28-45c / 28" 27", Presta 40mm Valve (2 Pack)

Just what I was looking for. Perfect!

This installed and worked without a leak. Will check after a few days to see if no abnormal slow leaks develop. So far so good.

These are substantial inner tubes. I'm quite willing to take a little extra weight for the protection they provide. I first used those provided with the Schwalbe Marathon Pro tires. I managed to pinch flat both tires going head-on over a bollard hinge (watching a deer). The punctures, caused by the rims smashing the tubes wall through the tire against metal plate, were small and there was only one puncture rather than the usual two. I could have patched the tube, but circumstances were against that (bad area, sun going down) so I opted to walk home. But I liked what I had seen enough to get the same tubes.

I recently purchased parts to build up a second set of wheels so I could easily exchange between a road tire set and touring size set. I bought these Schwalbe innertubes for my touring wheels set and used them for the 2023 Ride-the-Rim Crater Lake cycling outing in September. Everything was fine, however, the next week I experienced innertube leaks following some outings on mountain bike trails. I was riding with these new Schwalbe tires and innertubes, however, the innertube was not punctured. Instead the leak was coming from the Presta valve stem core which had not been properly tightened at the factory. Using needle-nose pliers, I tightened the nut (flats) which hold the valve core in place. This stopped the leaks in both innertubes.

I put this on my wheels/tires on the day one no issue so far so good!

I had one inner tube cut from the valve stem.I called Schwalbe support and he said it could have been the lining of the wheel. They sent me a new replacement. I would highly recommend this brand !

Well made bicycle inner tubes. I am slowly replacing the tubes on my bicycles and in my seat bags with these because I believe they are sufficiently rugged without being excessively heavy.

80 miles a week. Two years with no flats. I also Schwalbe Green Guard tires with these tubes. Thousands of miles with no flats.