The upgrading of the Big Deps engine and the Malossi crankcase, has led to a deficit in the transmission of this vehicle, to overcome which the great experience of Malossi engineers has designed a complete Over Range, suitable to support constantly increasing performance.

This new transmission system takes full advantage of the Malossi components already on sale last year, by adding several new parts that make the entire system particularly suited to the enormous power available. This latest system hinges on the new Fixed Pulley of the torque driver that has a larger diameter and the very latest specifications. The larger diameter of this pulley allows one to have a greater velocity-ratio range compared to the original pulley that has a notably smaller external diameter.

Malossi engineers have also taken particular care in realising this pulley right down to the smallest detail, using special materials and a particular type of thermochemical treatment that ensures exceptional surface hardness and therefore excellent wear and abrasion resistance. This new fixed pulley has been designed to offer perfect running if coupled to the Malossi Torque Driver that is already available and has the same diameter as the fixed pulley itself. To fully exploit the range of the new torque driver unit and the power ratings currently offered by competition machines, a new notched Special Belt has been introduced with larger section and revised length to ensure maximum performance under all running conditions.

To complete the renewal of the transmission system and take full advantage of its exceptional specifications, the MHR Multivar variable-speed drive has also been upgraded by fitting it with new tracks for the rollers, new variator adjuster spring and a new hub a new hub which is longer than the previous one and therefore able to combine with a more powerful belt and optimise the ratios. This new variable-speed drive represents the evolution of the previous generations, the result of many years of experience on the race circuit and the currently available CADCAM technology that allows top-level specifications to be obtained.

To fully exploit the range of the new torque driver unit and the power ratings currently offered by competition machines, a new notched Special Belt has been introduced with larger section and revised length to ensure maximum performance under all running conditions.

The whole completion of the OVER RANGE system is given by the clutch Fly Clutch and the Malossi clutch bell Ø 107 Wing Clutch Bell and the Special Belt.


6118526
Attention: after fitting the Malossi Over Range it will no longer be possible to start the vehicle by pushing, it will be necessary to use special starting tools (not included in the kit).



THE KIT CONSISTS OF :

Multivar MHR variator
This is the great novelty of this kit: the ability to house a true torque driver with double sliding rails to customise the gear curve as desired!

New pulley set, consisting of fixed and movable pulley with Ø increased from 100 to 110 mm
One-piece welded fixed and moving pulley with especially surface-treated bushing
Torque Driver
This is the great novelty of this kit: the ability to house a true torque driver with double sliding rails to customise the gear curve as desired!

New pulley set, consisting of fixed and movable pulley with Ø increased from 100 to 110 mm
One-piece welded fixed and moving pulley with especially surfacetreated bushing
Fly Clutch
Ø 107 mm clutch, redesigned with new masses to adapt to the opposite direction of rotation.
The Malossi spring coupling allows operation at a predefined optimum RPM attack point.
Optional: 2 sets of springs are available to customise your vehicle.

Wing Clutch Bell
Reinforced clutch bell with a finned cooling ring, perfectly matched to the newly developed high-performance Fly Clutch. This is the only component common to the scooter.

Primary gear shaft
We went as far as modifying the primary gear shaft to accommodate a pulley and clutch/bell assembly derived from the scooter world.
Having become the connecting element between the newly designed components, this shaft has been reinforced with an increase in the shaft Ø to 13.5 and is supplied with a nut, oil seal and roller shell for mounting.

Special Belt (sold separately)
Belt with section increased by 23% (from 13 to 16 mm)

PIAGGIO BOSS 50 2T: art. 6118940
PIAGGIO BRAVO 50 2T: art. 6119260
PIAGGIO CIAO PX 50 2T: art. 6119261
PIAGGIO SI 50 2T: art. 6118940

6118526
Attention: to be combined exclusively with Malossi belt.
Attention: in order to fit the primary gear shaft included in the kit, it is necessary to have fitted Malossi primary gears art. 6719286 or 67 7021 (6718630 - out of production).