[AntonioMQ]

I cannot help you with exact places offhand. However, I do remember seeing a number of rental places around town which had the big bikes. I do believe some of them sell them too. You might like to rent first before you decide on what kind of bike you want. A word of warning, the big bikes are all imported (you will hardly see any on the roads) and there is a very large import tax - some people have told me as much as 200%. If your head is larger than average (mine is so no insult intended) you might want to consider bringing a helmet with you. It is the law to wear one though not everyone does yet. However, policemen stop motorcycles a lot so it might be better to be on the correct side of the law.