Suzuki Alstare Extreme Racing cheats, and Codes for PC.
Note: This procedure involves editing a game file, so create a backup copy of the file before proceeding.
Use a text editor to edit the "physics.csv" file in the "bikes\bike1" folder, in the folder you installed the game in. Change the "nEngineMaxRevs,1180,15" entry to "nEngineMaxRevs,1680,15". This will allow your bike to get up to 400 km/h.