Primary transmission Piaggio scooter leader engine 125cc 17/44 Polini

The transmission ratios extend the final drive ratio of the motorcycle.

If the engine has enough power and can handle a longer transmission ratio, the top speed increases.

The original cylinder in most cases does not have enough power, so it will need to be replaced with a more powerful one.

Valid for:
APRILIA:
ATLANTIC 125
ARRECIFE
ATLANTIC 200
MOJITO 125 RY (LEADER)
BENELLI:
ADIVA 125/150 (LEADER)
DERBI:
BOULEVARD 125 (LEADER)
BOULEVARD 150 (LEADER)
GILERA:
DNA 125 4T
NEXUS 125 (2007)
RUNNER 125 VX 4T
ITALJET:
JET SET 125/150 (LEADER)
TORPEDO 125/150 (LEADER)
PIAGGIO:
LIBERTY 125/150 (LEADER)
LIBERTY 150 LE
SKIPPER 125 (LEADER)
SKIPPER 150 (LEADER)
SUPER HEXAGON 125 GTX
X 7 125 2008/2009
X 8 125
X 9 125
X EVO 125
ZIP 125 (LEADER)
VESPA:
125 4T GT - 125/150 4T ET4 (LEADER)
MALAGUTI:
MADISON 125 3 (Piaggio)