Stefano Benelli's gear parts enjoy a very good reputation in the racing scene.
If you are looking for reliable racing technology for your gearbox, you will find it here.
Hardened to an average of 60 HRC, the Benelli parts offer exactly the perfect balance of sufficient hardness and necessary elasticity to withstand the enormous loads in a racing engine permanently. For a street engine almost too bad, they are of course top material for engines with high performance that are driven a lot.

Benelli offers three different graded auxiliary shafts (bold printed the different values to the original gearbox):

1.Gang>/p>

2.Gang>/p>

3.Gang>/p>

4.Gang >/p>

Original

10

14

18

22

BENELLI short fourth

10

14

p>18

p>21

p>BENELLI extra short fourth

p>10

14

18

20

BENELLI short third, extra short fourth

10

14

17

20


All auxiliary shafts can be used with the gradation of the series gear.

(US)


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Gearbox shift scooter
Number of teeth 1st gear auxiliary shaft
10
Number of teeth 2nd gear auxiliary shaft
14
Number of teeth 3rd gear auxiliary shaft
18
Number of teeth 4th gear auxiliary shaft
21
Type of gearing
gerade
combinable 1st gear
55 Zähne (DRT Rovigo), 56 Zähne (DRT Rovigo), 54 Zähne (DRT), 58 Zähne (Piaggio)
combinable 2nd gear
52 Zähne (DRT Katana), 55 Zähne (DRT), 54 Zähne (Piaggio)
combinable 3rd gear
51 Zähne (BGM PRO), 49 Zähne (DRT), 51 Zähne (DRT), 50 Zähne (Piaggio)
combinable 4th gear
47 Zähne (DRT Adjustment), 46 Zähne (Piaggio)
 
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