Review on Schwalbe AV17 Inner Tubes - 700x28-45c / 28-inch 27-inch - Schrader Valve (2 Pack) by Todd Calloway

These are good quality tubes overall and a good price. But they are advertised as suitable for 45c tires and are NOT. 45c tires are big and have more room for more air, and those tubes are too skinny to handle that kind of air expansion. Please note these are not "cheap" cameras, they are decent quality but they are too flimsy for a 45c tire. I have a Trek Verve 1 with 45c tires and have ridden both in a few weeks. If you have 40c-47c tires, you should look at Sunlite 40-47c tubes. These are extra thick, durable tubes that can withstand such a volume of air.