Accelerator for Windows is the newest version of Craig Walters' popular Accelerator software simulation program. This new Windows version is more powerful than previous editions, offers more input variables for greater flexibility and precision, and provides a more elegant graphical interface. Used by professional racers and major race teams since the early '90s, Accelerator is the standard for Harley-Davidson computer-generated engine simulation. The application runs on Windows 98, SE, ME, 2000, or XP operating systems and is available only on a USB drive sent directly to you, there is no digital download at the moment.