After riding my Giant Cypress for almost a year I got my first flat. After leaving the bike in the garage for a couple days (as the snow arrived) I've noticed that the rear wheel's tire is completelly deflated!
I'm sure it's simple, but could you please provide me with some links how to do it the right way?
So far I studies the following ones:
TIRE AND INNER TUBE REPLACEMENT (Park Tools)
Thanks in advance!