None of this would be worth it to me as the potential for damages to me far outweigh the reward of 20-30 dollars a day. All of my bikes have top shelf frames and components, or are otherwise too old and antiquated for this type of use. If I were young and had nothing to loose this sort of thing may be appealing, but after dating a medical mal practice attorney and a judge, I gaurantee that you are liable when you rent your property out to strangers. This is the sort of thing that you need your own insurance policy for if you want to be covered.