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VAPE, for fanwheel, for Vespa
125 V15-33/VM/VN1/ACMA,
steel, zinc plated,
hole circle: 98mm,
Ø 112,0mm,
for tuned engines

Powerful and reliable ignition as an update for classic Vespa models.


SIP have managed to gain the assistance of a major European producer, VAPE, to manufacture these high-end ignition systems for our beloved Vespas. The materials, production and construction of the SIP PERFORMANCE ignition systems are of the highest quality. The laser-cut logo is a good indication of the overall clean and efficient manufacture of the components of this kit. The advantages of this ignition speak for themselvers

  • Strong power supply
  • Strong, reliable spark
  • Particularly stable flywheel

The electrical functions are representative of state of the art modern technology. Due to the eight coils included on the stator-plate enough power is created at tick-over revs to already fully illuminate the Vespas lighting. We have both AC and DC versions available and we recommend the DC type if you wish to power digital components such as the SIP Speedometer, or you require a high battery loading charge. By using the DC version with SIP Speedometer you required a Rev Signal Filter from KOSO. Instead the Rev Signal Filter you can also connect the brown Cable from the SIP Speedometer to the white CDI Cable of the SIP/VAPE CDI with an extra Cable! Setting on Speedometer by using the DC Version is 1 and AC is 6.


The two versions of the SIP-Vape ignition

The CDI module is available as a 'Road' version with a static ignition point, similar to the original item, or a 'Sport' version that includes a variable ignition point which advances at low revs. This increases the available torque - especially at the lower end - and the ignition point is then gradually retarded as the rpm rises into the power-band. This also helps reduce the combustion temperature while simultaneously providing an increased rev-range.


The pick-up on the stator-plate is split into two and arranged on top of another instead of next to each other as with the original design. This eliminates the possibility of false positioning during the initial set up due to the sloppy manufacturing tolerances included on many Vespa engine casings, crankshafts, stator-plates and flywheels. The exact ignition point is clearly marked with a precise line on both the flywheel and stator-plate, which allows ignition adjustment without stroboscopic lamp. All you need to do is find out the top dead center (TDC).


The extremely stable flywheel

One of the most major advances achieved is the production of the fly/fanwheel unit as a single component, avoiding a riveted inner mounting-cone and an uneven rotation. This greatly reduces engine vibration while also noticeably extending the working life of the flywheel side crankshaft bearing. The fanwheel is CNC machined from solid aluminium and delivers an identical volume of cooling air to the cylinder as the original PX 125 and PK items from PIAGGIO, throughout the whole rev-range. The amount delivered by most aftermarket ignition systems is easily surpassed by our design, without preventing higher motor speeds.


The flywheel intended for the smallframe Vespas weighs 1390 gr. and for the largeframe 1660 gr., making them both considerably lighter than their original counterparts. This primarily improves throttle-response, but leaves the motor easily manageable in urban traffic and while carrying a pillion. Our SIP – VAPE flywheels are 100% compatible with the original flywheel remover type.


Conclusion: The SIP-Vape ignition ends old problems of Vespa ignition: The flywheel is virtually ruled out as a source of error. The spark is always generated reliably. There is always enough power available for the light.


Technical specifications :

  • A relatively high 110W power is available from tick-over for greatly improved lighting.
  • Can also power additional electrical components such as a fuel pump, lambda sensor heating, USB power-port etc.
  • Precisely balanced flywheel due to its one-piece construction.
  • Plug & Play installation without a strobe-lamp due to precise ignition point markings.
  • Perfectly arranged rotational mass, improved throttle-response.
  • Ideal cooling performance, identical with original straight-finned type.
  • Twelve-finned, CNC machined fanwheel.
  • RPM linked variable ignition point (SIP PERFORMANCE 'Sport' version).
  • Complete delivery includes : CDI, Fly/fanwheel, rectifier (DC), regulator (AC).
  • Single woodruff key slot on crankshaft mounting of the flywheel, avoiding incorrect set up.
  • High end materials, precise production and laser-cut logo.


  • Order a new spark plug resistor (art. no. 85174000) and spark plug.
  • Order the right tool for a professional assembly: Puller art.-no. 93332500, Piston Stopper art.-no. 49,316,000th
  • Do not forget a fresh nut for the flywheel art.-no. 78043820 and washer art.-no. 87280000.
  • With the Stroboscopic Ignition Timing Lamp art.-no. FS118600 check the correct ignition timing.

SIP customer MaNiAc, LRSC, SIP online forum, March 2019.

“I'm impressed! The kit makes a very high-end impression and seems to be in a class with much more expensive systems! Very good principle of ignition. Smart to have left a magnet out of the flywheel, we hooked it up to an oscilloscope to measure the spark impulse and it looked great. Another plus is the replaceable HT lead and the balanced one-piece rotor, that possesses sufficiently large radii. The stator plate is mass-free – great! Very finely constructed iron-core, nice!”

icon explos Spare Parts Catalogue
This article can be found in the following exploded drawings ... go Go to Exploded Drawings!
75045100 145,00 €

incl. VAT  plus shipping.
88833400 0,50 €

incl. VAT  plus shipping.
51007000 109,00 €

incl. VAT  plus shipping.
FS118600 85,00 €

incl. VAT  plus shipping.
WI301430 24,90 €

incl. VAT  plus shipping.
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High End Racing Parts

49,00 €
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400g / piece
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Product forums
fits on the following articles
divider Productname divider Art. No. divider Price divider Stock
Ignition SIP PERFORMANCE by VAPE, Road, for Vespa 125 V15 -33/VM/VN1, 510026RA 289,00 €
Ignition SIP PERFORMANCE by VAPE, Sport, for Vespa 125 V15 -33/VM/VN1, 510026SA 309,00 €
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 V30-33 2T AC '51-'53
VESPA 125 125 V1-15T 2T AC '48-'50 V15, 1950
VESPA 125 125 VN1-2T 2T AC '54-'57
VESPA 125 ACMA 125 2T AC '51-'55
VESPA 150 150 VB1T 2T AC '57-'58
VESPA 150 150 VL1-3T 2T AC '54-'57
VESPA 150 (T1/150) (D) 150 VL1T 2T AC '55
VESPA 150 (T2/150) (D) 150 VD1T 2T AC '56
VESPA 150 (T3/150) (D) 150 VD2T 2T AC '57-'59
VESPA 150 GL ACMA 150 VGL1T 2T AC '56-'58
VESPA 150 GL Touring (DK) 150 VGLA-B 2T AC '57-'58

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