Safety in Venezuela

Hello,

I'm planning on biketouring in Venezuela on the next months with my girlfriend and we are concerned about safety issues. We are in Cartagena, Colombia, right now and we've met some travelers who were robbed and others that were forced to bribe the police.

If any of you knows valuable information about which areas not to visit, or any other special safety concerns regarding biketouring in Venezuela, it would be of great help.

Thanks,

ernesto