KR and XLR Manuals XR 750 and XRTT Manuals Technical info on KR and XLR Technical info on XR and XRTT Technical info on KR Cams  WR KR Parts List, 1952/57 Ancestors 1 2 3 4 5 6 "KR style" Twin Carb Manifold Other H-D racers Harley-Davidson Patents   questions and answers...