Very cool tool ! This Link will take you to the 2001 - 2008 Ducati models info pages. Here's the info from the 2001 Superbike lineup: 2001 748 / 748S 11,000 RPM 1a 37/15, 2a 30/17, 3a 28/20, 4a 26/20, 5a 24/23, 6a 23/24 Primary drive Straight cut gears; ratio 2 Front sprocket 14; Rear sprocket 38 180/55 ZR17 2001 748R 11,500 RPM 1a 37/15, 2a 30/17, 3a 28/20, 4a 26/20, 5a 24/23, 6a 23/24 Primary drive Straight cut gears; ratio 2 Front sprocket 14; Rear sprocket 36 180/55 ZR 17 2001 996 / 996S - 8,500 RPM / 9,500 RPM 1a 37/15, 2a 30/17, 3a 28/20, 4a 26/20, 5a 24/23, 6a 23/24 Primary drive Straight cut gears; ratio 1.84 Front sprocket 15; Rear sprocket 36 190/50 ZR 17 2001 996R 10,200 RPM 1a 37/15, 2a 30/17, 3a 28/20, 4a 26/20, 5a 24/23, 6a 23/24 Primary drive Straight cut gears; ratio 1.84 Front sprocket 15; Rear sprocket 36 190/50 ZR 17