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Primary Driven Gear 64 teeth,

input shaft, SERIE PRO by
STOFFI'S for Vespa 125 VN/VM
/VNB/Super/150 VL/VB1/VBA
/VBB/VGLA/B/Super/150 GS
fits clutch cog 22/23/24 teeth

The primary gear cog, combined with the clutch drive cog, completes the primary drive function in the gearbox of every geared Vespa model. It is solidly riveted to the output shaft and also directly linked to the input shaft. The higher the power output of the motor, the taller the gearing should be. This allows the extra power to be transformed into higher maximum road speeds.


This primary drive gear cog can also be combined with all Vespa PX models clutches. The original clutch can no longer be used. To make the PX clutch align correctly a CNC machined spacer washer (#17650000) will also be required. This primary drive cog is available with either 65 or 67 cog teeth.


SIP-TIP : Do not forget to order a suitable DRT primary drive repair kit (#16020770).

93002000 $86.90
16410000 $0.64
90024000 $13.90
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292g / piece
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Product forums
icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 125 125 VM1-2T 2T AC `52-`54
VESPA 125 125 VN1-2T 2T AC `54-`57
VESPA 125 (T2/125) (D) 125 VNB1-6 2T AC `59-`65 VNB1M 068989 ->
VESPA 125 GT / 125 Sprint 125 VNL1-2 2T AC `61-`73 VNL2T -> 25784 (CH) (F)
VESPA 125 Super 125 VNC1T 2T AC `65-`69 VNC1M -> 011000
VESPA 150 150 VBB1-2 2T AC `60-`67 VBB1M 9225 -> VBB2
VESPA 150 150 VB1T 2T AC `57-`58
VESPA 150 150 VBA1T 2T AC `58-`60 VBA1M 124019 ->
VESPA 150 150 VL1-3T 2T AC `54-`57
VESPA 150 (T4/150) (D) 150 VGLA-B 2T AC `59-`65 VGLA1M 029963 ->
VESPA 150 (T4/150) (D) 150 VGLA-B 2T AC `59-`65 VGLB1T
VESPA 150 GS 150 VS1-5T 2T AC `55-`61 VS5M 00102950 ->

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