Changing the final drive ratio may result in the
OBD diagnosis being validated and the MIL warning
light on the instrument panel turning on.
In these cases it may also happen that the ECU
enters a speed protection mode, severely limiting
the of the bike.
In extreme cases, engine reliability problems may
also occur.
For these reasons, we recommend that those who
wish to modify the final drive ratio (and therefore
only use the bike on a closed circuit) also a
DP calibration.
Changing the final drive ratio immediately
makes the warranty null and void and the motorcycle
can not be used on public roads as it no longer
corresponds to the type-approved version.
Final
drive ra‐
tio
Rear sprocket
40 41 42 43 44 45
Front
sproc
ket
15 2.67 2.73 2.8 2.87 2.93 3
16 2.5 2.56 2.63 2.69 2.75 2.81
181
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