So i just recently started commuting with my road bike. Been about 2 weeks now but I have a consistent problem.

My back tire had a flat on the first day, good times. So I had the tube replaced at a shop cause I was close and it was most convenient. After that my back tire has been flat every time between rides. i can inflate it and ride to or from work with no issue but the next time I go to ride it is completely flat.

I took out the tube doing this and checked for leaks. Under water i found no source of a leak. So I replaced the tube and the new tube is doing the same exact thing.


Any help? Ideas?

Thanks