Just one thing, if you buy a bike in Brazil be sure to pay all the taxes and have the registration in your name, otherwise you won't be able the leave the country with your bike.
In Brazil we have a kind you mandatory insurance called DPVAT (Danos Pessoais Causados por Veículos Automotores de Via Terrestre - Insurance for Personal Injury Caused by Motor Vehicles) and you pay it with you registration taxes, the IPVA. This is the only insurance you gonna need to travel on the roads in Brazil. If you are planing to take you bike on other Mercosul countries you will also need a "Carta Verde", an international insurance valid to the whole Mercosul, Chile and Bolívia. This insurance is only required for cars and bikes with Brazilian, Uruguayan and Argentine plates and costs around US$ 100 per month. Bikes registred in Paraguay, Bolivia or Chile usually don't need this "Carta Verde" insurance.
I would go with Tobi's advice, is a much better option to buy a bike in Chile. Brazilian bikes are extremely expensive compared with other countries arround.
Suzuki GN125 2005
- Uberlândia / MG - Brazil
You don't need to have a big bike to have a great adventure.