The Diag-4-Bike is a professional diagnostic tool for Harley-Davidson workshops and tuning centers. It is also available as a diagnostic tool for Indian and Victory. All you need is one of the two interfaces, the software package for Harley or for Indian and Victory, and a PC or laptop with USB connection and running Windows 7, 8.1 or 10. To start with Diag-4-Bike you have to order the software kit ZPN732056 with either the ZPN732050 standard USB interface or the ZPN732051 combined USB & Bluetooth interface. The Diag-4-Bike Software comes with 1 ZPN732045 dongle to tune your first bike.