Stay very far away from this game. This is a money scam game. You never get enough money together to make your bike fast enough. And to upgrade hour bike with diamonds will take you years. And there is always a problem with there ads. So you can not dubbel your money most of the time.They give you minimum diamonds. The most you must bye, ore you will come nowhere in this game.This game is only a wast of time and a lot of money.