Biking Majuro, Rentals (house or bike) in Majuro?

I'm interested in visiting Majuro and want to find a good used bike to get around. Although I've heard there are not many bikes and roads can be difficult, I'd like to find an old bike. Any suggestions: what where how to find a good bike?
Are there any places in Majuro that list house or apartment rentals on the island? I'm hoping to find something besides hotels...any suggestions?
Much Thanks