I started biking again this year and couple of days ago I had a flat on my front tire, I was so exited to finally be able to use the knowledge I learned 10 years ago on a bike Basic Mainteinance course.
So I got the tools ready and refreshed my memory with couple of videos from youtube then slowly started changing the tube. 1 hour after I was so happy I made it with out any issues and everything was looking so smooth and good, this is when I noticed that one of the brake pads was touching the side of the wheel wall. I tried everything from youtube videos to reading old threads here and nothing, two hours later I end damaging the brake cables aggh so frustrared! I went to bed defeated.
Next morning I wake up early and went to my amazing LBS and pay $25 for a new brake cables installation and tune up. Guess what? The problem was I installed the tire backwards when I changed the tube. Sigh* Lesson learned.