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WebshopVespa Smal...Spare Part...Cylinder, ...Piston GRAND-SPORT ROAD for
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Piston GRAND-SPORT ROAD for

Vespa 90-125/PV/ET3/PK/S/XL/2,
for original 125cc cylinder
Ø 55,0mm, 2 piston ring(s),
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.


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75020100
200g / piece
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icon scootermodels This product fits the following models
  VESPA
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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