APRILIA tuono v4 Owner's Manual page 131

G
EAR RATIOS
Primary drive ratio
1st gear ratio
2nd gear ratio
3rd gear ratio
4th gear ratio
5th gear ratio
6th gear ratio
Final drive gear ratio
D
RIVE CHAIN
Type
Model
44 / 73 (with gears)
15 /39 (secondary)
16 /33 (secondary)
20 / 34 (secondary)
22 /32 (secondary)
26 /34 (secondary)
27 /33 (secondary)
16 / 42
525
With sealed master link
Regina 110 links
131