2006 Ducati Superbike 749 Dark Owners Manual - Page 186

Transmission (749/749S/749Dark) Dry clutch operated by a control lever on left handlebar. Drive is transmitted from engine to gearbox main shaft via spur gears. Front sprocket/clutch sprocket ratio: 32/59 for 749/749Dark/749S. 6-speed gearbox with constant mesh gears, gear change pedal on left side of motorcycle. Gearbox/rear sprocket ratio: 14/39 for 749/749Dark. 14/38 for 749S. Total ratios for 749/749Dark/749S: 1st 15/37 2nd 17/30 3rd 20/28 4th 22/26 5th 23/24 6th 24/23 Transmission from gearbox to rear wheel via drive chain for 749/749Dark/749S: Make: DID Type: 525 HV Dimensions: 5/8"x5/16" Links: 96. Important The above gear ratios are the homologated ones and under no circumstances must they be modified. However, if you wish to tune up your motorcycle for competitive trials, you may refer to Ducati Motor Holding S.p.A. who will be glad to provide information about the special ratios available. Contact a Ducati Dealer or Authorized Workshop. Warning For the replacement of the rear sprocket, contact a Ducati Dealer or Authorized Workshop. The incorrect replacement of this component could seriously endanger rider and passenger safety and cause irreparable damage to the motorcycle. E 89