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Racing Cylinder PARMAKIT W-F..

..orce AC 144cc for Vespa
90-125/PV/ET3/PK/S/XL/2,
Ø 60,0mm, aluminium, 5 ports,
stroke 51mm,
con-rod: 105mm, direct intake,
incl. 35mm manifold and reed
valve

FOR RACE USE ONLY

Speed thrills! PARMAKIT, together with Italian racing champ STEFANO SCAURI, has stormed the market with their purebred SP-W-Force.

SP stands for Sport Production, and W-Force means a reed valve direct intake in the hottest up to date W-Force version. Move to the head of the class with 2 separate reed valve casings instead of just one to get an optimal flow surface. The reed valves star in the successful Aprilia Rotax cylinders. Double dipping here: they are fed not only through the intake, the generous Boysen port is the other side of this successful hottie.

The exhaust port is bridged, with an exhaust width of 82%. VERTEX delivers the piston and offers either a 58 mm or 60 mm bore coated forged piston with a 1.0 mm piston ring. Timing of both cylinder kits is identical. All cylinders in the SP W-Force series have a larger base diameter. The crankcase must be modified and, at the very least, the cylinder base adapter will have to be milled.

58.00 mm -> base adapter in casing 63.0 mm, tolerance +0.03 - +0.05 mm, 20.0 mm deep.

60.0 mm, 97 mm connecting rod -> base adapter in casing 65.0 mm, tolerance +0.03 - +0.05 mm, 20.0 mm deep.

60.0 mm, 105 mm connecting rod -> base adapter in casing 65.5 mm, tolerance +0.03 - +0.05 mm, 7.5 mm deep measured from original gasket surface.

The squish clearance should be at least 1.3 mm, exact adjustment through spacer included in delivery. Exhaust stud distance 62 mm, exhaust system must be modified, for example with a modified flange plate.

Conclusion: This race cylinder is true to it's name: performance of 28 PS can be achieved and maintained.

 

Aluminum/ 58/60 mm bore/ 5 transfers/ 135/144 cc's

Aluminum cylinder, 51 mm stroke, 97 mm or 105 mm connecting rod, 5 transfers, direct intake, W-Force reed valve, VERTEX forged piston with 1.0 mm cast piston ring, bi-conical gudgeon pin, 8 mm exhaust studs with 62 mm stud distance and 36 mm exhaust diameter, 8x screwed, centered CNC milled two piece cylinder head with separate combustion chamber (anodised), incl. gasket set.

 

Motor periphery should match performance increase and jets should be adjusted. Fits all Vespa PV/ET3/XL/XL2 models, except PK automatic. The crankcase must be modified to match the larger cylinder transfers.

 

SIP-TIP: Main jet adjustment and new spark plugs are a must. Racing shaft with 20/20 or 24/25 end cone. Pay attention to length of connecting rod. Exhaust VSP Race, FRANZ or FALC, electronic ignition such as VESPATRONIC or PARMAKIT, carburetor 34 - 38 mm. Primary 2.54 - 2.34, round out with DRT toothed gears.


OEM Numbers (for the purpose of comparison)  57095.00 (PARMAKIT)


Customers also searched for this article with:  race cylinder, performance cylinder, race cilinder, tuning cylinder, alluminium, ally, ally, aloy, alloy


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$589.33
Art.No.
75044500
3,700g / piece
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icon scootermodels This product fits the following models
  PIAGGIO
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
PIAGGIO APE 50 50 TL1-2T 2T AC `69-`80 crankshaft with 51mm stroke necessary
PIAGGIO APE 50 FL / FL2 50 TL6T 2T AC `89- crankshaft with 51mm stroke necessary
PIAGGIO APE 50 FL3 50 TL5T 2T AC `96- crankshaft with 51mm stroke necessary
PIAGGIO APE 50 Mix 50 2T AC `99- crankshaft with 51mm stroke necessary
PIAGGIO APE P 50 ( Vespa Car ) 50 TL3T 2T AC `80- crankshaft with 51mm stroke necessary
PIAGGIO APE TM P 50 / Elestart 50 TL4T 2T AC `85- crankshaft with 51mm stroke necessary
  VESPA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 50 / N 50 V5A1T 2T AC `63-`71 crankshaft with 51mm stroke necessary
VESPA 50 L 50 V5A1T 2T AC `66-70 crankshaft with 51mm stroke necessary
VESPA 50 R 50 V5A1T 2T AC `69-`83 crankshaft with 51mm stroke necessary
VESPA 50 Revival 50 V5R1T 2T AC `90- crankshaft with 51mm stroke necessary
VESPA 50 S 50 V5SA1T 2T AC `63-`84 crankshaft with 51mm stroke necessary
VESPA 50 Special 50 V5A2T 2T AC '69-'72 crankshaft with 51mm stroke necessary
VESPA 50 Special 50 V5B1T 2T AC '72-'75 crankshaft with 51mm stroke necessary
VESPA 50 Special 50 V5B3T 2T AC '75-'83 crankshaft with 51mm stroke necessary
VESPA 50 Special Elestart 50 V5B4T 2T AC '75-'76 crankshaft with 51mm stroke necessary
VESPA 50 Special Elestart 50 V5B2T 2T AC `72-`75 crankshaft with 51mm stroke necessary
VESPA 50 Special Elestart 50 V5A3T 2T AC '69-'72 crankshaft with 51mm stroke necessary
VESPA 50 SR / Sprinter 50 V5SS2T 2T AC `71-`79 crankshaft with 51mm stroke necessary
VESPA 50 SS / Super Sprint 50 V5SS1T 2T AC `65-`71 crankshaft with 51mm stroke necessary
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 50 50 V5X1T 2T AC `82-`84 crankshaft with 51mm stroke necessary
VESPA PK 50 / S Automatica / Elestart 50 VA51T 2T AC `84-`86 crankshaft with 51mm stroke necessary
VESPA PK 50 S / Elestart 50 V5X2T 2T AC `82-`84 crankshaft with 51mm stroke necessary
VESPA PK 50 S Lusso / Elestart 50 V5X2T 2T AC `85-`88 crankshaft with 51mm stroke necessary
VESPA PK 50 SS / Elestart 50 V5S1T 2T AC `83-`86 crankshaft with 51mm stroke necessary
VESPA PK 50 XL / Elestart 50 V5X3T 2T AC `85-`90 crankshaft with 51mm stroke necessary
VESPA PK 50 XL FL 50 V5N1T 2T AC `90- crankshaft with 51mm stroke necessary
VESPA PK 50 XL HP 50 V5N2T 2T AC `91-`91 crankshaft with 51mm stroke necessary
VESPA PK 50 XL N NUOVA 50 V5X5T 2T AC `89-`90 crankshaft with 51mm stroke necessary
VESPA PK 50 XL Rush / Elestart 50 V5X4T 2T AC `88-`90 crankshaft with 51mm stroke necessary
VESPA PK 50 XL2 / Elestart 50 V5X3T 2T AC `90- crankshaft with 51mm stroke necessary
VESPA PK 50 XLS 50 V5S2 2T AC `86- crankshaft with 51mm stroke necessary
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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