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Piston GRAND-SPORT ROAD, 2.o/s for Vespa 90-125/PV/ET3/PK/S/XL/2
Part no.: 75022000
Including VAT Plus shipping
250g / Piece
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Piston GRAND-SPORT ROAD, 2.o/s

for Vespa 90-125/​PV/​ET3/​PK/​S/​XL/​2

for original 125cc cylinder
  • Ø 56,0mm
  • pin Ø=15mm
  • nodular iron/chrome, w/o piston window
Grade AA - first-class repair
Review now
Including VAT Plus shipping
250g / Piece

Product description

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.

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Get inspired. This product is included in the following public notepads:
Notepad name User Change date Article Note
patrick vesjag February 22, 2022 29 View notepad
Hannes UdoE January 20, 2021 1 View notepad

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File name File type Description File size
Kolben GRAND SPORT Info Kolben GRAND SPORT Info 0,20 MB Download
Technik_Zylinder Technik Zylinder Vespa 46,55 MB Download
Cylinder technology Cylinder technology 6,14 MB Download
Smallframe cylinder assembly Smallframe cylinder assembly 0,44 MB Download
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