I have an old second-hand bike that I use daily for commute, and in a few weeks I want to take it on my first bike tour around Europe.
I'm a bit worried, since the bike is quite old (has some rust spots, a loose spoke or 2, etc.), that it might not be the safest thing to do. However it never had any problems while riding around the city, and unfortunately I don't really have money for a new bike or parts.
Are there some standard checks one can do to see if it's fit for touring? Are there any serious problems that I should be worried about?