Ducati 749S 2002 Manuel D'utilisation Et Entretien page 171

Transmission
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
6-speed gearbox with constant mesh gears, gear change
pedal on left side of motorcycle.
Gearbox/rear sprocket ratio:
14/39
Total gear ratios:
1 st gear 15/37
2 nd gear 17/30
3 rd gear 20/28
4 th gear 22/26
5 th gear 23/24
6 th gear 24/23
Drive chain from gearbox to rear wheel:
Make:
DID
Type:
525 HV
Size:
5/8"x1/16"
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
your safety and that of your passenger and cause
irreparable damage to the motorcycle.
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