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Vespa 90-125/PV/ET3/PK/S/XL/2,
for original 125cc cylinder
2.o/s, Ø 56,0mm, pin Ø=15mm,
nodular iron/chrome, w/o
piston window

GRAND-SPORT has marketed their own racing piston since 2004, and no piston product has influenced the Vespa scene like theirs. GRAND-SPORT aka GS-Pistons earnt recognition over the years and has driven home countless successes in all VESPA race series. When it comes to cast iron cylinders and power, most only want GRAND-SPORT piston products.

High quality metal alloys with at least 18% silicon. Furthermore, GRAND-SPORT pistons are equipped with high quality pistons rings made of ductile cast iron with chromed race and 1mm thick ring. A further plus: lighter biconical gudgeon pins.

Conclusion: if high quality materials, well thought out technical details and dependability are what you're looking for, this is it. GRAND-SPORT pistons are a byword for powerful and durable cast iron cylinders.


Aluminum/ ø 55.00/ 55.50/ 56.00mm/ 1mm piston ring

High quality metal alloys with at least 18% silicium, 29mm compression height, pin distance suitable for all VESPA PV/PK 125 original cylinders. 1mm piston ring made of ductile cast iron with chromed race, biconical gudgeon pins.

Before installation, control piston play and piston ring stop play; adjust if necessary!

As a rule, to get optimal performance, compression/pinch slot should be modified; upper cylinder modified/milled (compression height original piston 36,5mm)


SIP-TIP: Main jet adjustment and new spark plugs are a must.  Ideal for original cylinders would be an adapted and much more stable MALOSSI cylinder head! Casing should be modified to fit new transfer size.

icon explos Spare Parts Catalogue
This article can be found in the following exploded drawings ... go Go to Exploded Drawings!
92971000 $21.13
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250g / piece
Stock on hand   Amount


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Spare Parts
icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 90 90 V9A1T 2T AC `63-`84
VESPA 90 Racer 90 V9SS2T 2T AC `71-`74
VESPA 90 SS Super Sprint 90 V9SS1T 2T AC `65-`71
VESPA 100 (UK) / 100 Sport (US) 100 V9B1T 2T AC `78-`90
VESPA 125 125 VMA1T 2T AC `65-`67
VESPA 125 Primavera 125 VMA2T 2T AC `67-`83
VESPA 125 Primavera ET3 125 VMB1T 2T AC `76-`90
VESPA PK 80 S / Elestart 80 V8X5T 2T AC `82-`86
VESPA PK 80 S Lusso / Elestart 80 V8X5T 2T AC `85-`88
VESPA PK100 S / Elestart 100 V9X1T 2T AC `82-`84
VESPA PK100 XL 100 V9X2T 2T AC `86-`90
VESPA PK125 125 VMX1T 2T AC `82-`85
VESPA PK125 ETS / Elestart 125 VMS1T 2T AC `84-`85
VESPA PK125 N NUOVO (FL) 125 VMX7T 2T AC `90-`91
VESPA PK125 S / Elestart 125 VMX5T 2T AC `82-`84
VESPA PK125 XL / Elestart 125 VMX6T 2T AC `86-`90
VESPA PK125 XL2 125 VMX6T 2T AC `90-

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