PRODUCT DESCRIPTION 

Gearbox 16/42 teeth POLINI Secondary

INFORMATION 

We know how it goes: you've done your best to tune up your motor to bring it up to an appreciable performance level - then find that your speed isn't going anywhere cause the original transmission only helps with acceleration rather than bringing the power performance up where you want it. Always at the limit, your motor works its heart out for you,..... which in turn means stress, wear and tear for the crankcase, bearings and pistons.

A longer transmission allows you to get the same speed - but at a lower rpm's for a healthier motor. Give yourself an extra margin and more performance without stressing out on inclines. Your acceleration loss can be made up with a variator readjustment. The rolls are a little lighter, and your clutch is a little heavier.

The sports transmissions from MALOSSI and POLINI are mainly straight-geared, making the interlock area smaller and reducing friction. Lower friction in your transmission means less heat and you're finally getting that badly needed power to your rear wheels. 

In case you drive a PIAGGIO/GILERA motor, please take note of the following information about your gears:

1. Up till 1996, PIAGGIO used toothed bears with 18mm.

2. From 1996 to 1998. PIAGGIO reduced the diameter of the intermediate shaft from 18mm to 17.7mm. To mensureyou get the right part, please measure shaft diameter before ordering.

3. Since 1998/99 PIAGGIO has been using a new, more giant cog wheel on the main shaft. A new pinion with a smooth inner surface has replaced the previously used pinion with a toothed inner surface.

Gearbox 16/42 teeth POLINI Secondary

FITMENT 

Gearbox 16/42 teeth POLINI Secondary