The Nite Rider® Helmet mount for all systems that use the slider mounting clip SYSTEM COMPATIBILITYPro Series HID Series Classic Plus & Select Evolution & Digital Evolution Head Trip & Digital Head Trip Trail Rat & Trail Rat Select Road Rat Digital Patrol LEDDigital Patrol Pre-2001 systems WARRANTYThis Nite Rider® accessory is backed by Nite Rider’s lifetime warranty that covers any defects in material & workmanship.