item 928.100.013
INCREASED GEAR SHAFT AND PROPELLER M14 FLANGE
Polini Motori has designed and produced a new increased transmission and propeller flange.
All the Thor 250 and Thor 250DS engines produced starting from 15.06.2020 will be equipped with the new transmission.
The upgrade refers to the gear shaft diameter that switches from M12 to M14.
This change is dedicated above all to applications on 3-axes or on machines with propeller with diameter bigger than 140cm because the reduction shaft is undergone to high levels of stress that may damage the reduction shaft, causing a big failure.
Polini Motori highly RECOMMEND replacing the reduction with the new increased M14 version to the owners of Thor 250 and Thor 250DS purchased before 15.06.2020
