Cylinder -POLINI alloy 133 cc Evolution- Vespa PV125, ET3 125, PK125

Preview: Cylinder -POLINI alloy 133 cc Evolution- Vespa PV125, ET3 125, PK125

Description

With the 133 Evolution Polini Motori presents a completely new development. The cylinder is made of aluminium with Nikasil coating.
With 57 mm bore and 51 mm stroke, 133 cc displacement is available. The timing is 124° overflow to 179° exhaust. The layout is determined by six overflows. This is a completely new design with fat volume.
The exhaust shape is also new. The exhaust is 38mm wide, which is 68% chord measurement. The stud spacing (M8) is 56 mm and there is plenty of meat for further tuning.
The piston comes with two 1.5mm thin piston rings. It is coated to ease the break-in period. The head is made of cast aluminum with a high silicon content. In addition, it has additional cooling fins on the underside. This allows the heat to be dissipated much better, both from the cylinder itself and from the head. The compression was also slightly adjusted and the head is sealed with a copper gasket.

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€409.00 *

incl. VAT plus shipping costs

Available immediately (delivery time 1-3 working days*)

P For this item you get fidelity point/s

General
performance class:	racing, sport
Gudgeon pins
diameter:	15 mm
Spark plugs
thread type:	M14x1,25
thread spark plug:	long
heat rating NGK:	B9ES
Cylinders
displacement:	130 cm³
bore:	57 mm
engine type:	2-stroke
type of cooling:	air cooled
material:	aluminium
material piston cylinder surface:	Ceramic
cylinder head inclusive:
cylinder gasket set inclusive:
number of transfers (incl.boost ports):	6
number of boost ports:	2
shape exhaust port:	single port (oval)
exhaust mounting:	flange
flange type:	2 studs
exhaust bolt pitch:	56 mm
thread exhaust studs:	M8
Crankshafts
stroke:	51 mm
Pistons
number of piston rings:	2
production method piston:	cast
Piston rings
piston ring type:	common ring
thickness rings:	1,0mm
Circlips
circlip type:	G-type
wire size of circlip:	1,25mm
Cylinder heads
cylinder head type:	one piece
OEM numbers (for comparison purposes only)
Polini	1400211, P140.0211, P1400211, 140.0211

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