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Cylinder -POLINI cast iron 133 cc Racing- Vespa PV125, ET3 125, PK125
Part no.:
P1400050R
Description
Polini has reworked the legendary 133 very gently. More was not necessary with the very sophisticated cylinder. The essential innovation concerns the cylinder head.
The bore of 57 mm has been kept and so with 51 cc shaft 130 cc and with 54 shaft 138 cc are available. The layout of the cylinder is unchanged and is determined by the six transfer ports.
The piston is made of die-cast, which gives it a very good durability at low weight.
The new head is made of cast aluminium with a high silicon content. It also has additional cooling fins on the bottom. This means that the heat is dissipated much better, both from the cylinder itself and from the head. The compression has also been slightly modified.
The new copper gasket not only conducts heat better, it also contributes to a significantly better seal between the cylinder and head.
Conclusion:Classics made even better!
Spark plug: long thread, e.g. NGK B9ES or Bosch W2CC
AI-translation
The bore of 57 mm has been kept and so with 51 cc shaft 130 cc and with 54 shaft 138 cc are available. The layout of the cylinder is unchanged and is determined by the six transfer ports.
The piston is made of die-cast, which gives it a very good durability at low weight.
The new head is made of cast aluminium with a high silicon content. It also has additional cooling fins on the bottom. This means that the heat is dissipated much better, both from the cylinder itself and from the head. The compression has also been slightly modified.
The new copper gasket not only conducts heat better, it also contributes to a significantly better seal between the cylinder and head.
Conclusion:Classics made even better!
Spark plug: long thread, e.g. NGK B9ES or Bosch W2CC
AI-translation
€259.00 *
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: | 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: | cast iron |
| material piston cylinder surface: | cast iron |
| cylinder head inclusive: | |
| cylinder gasket set inclusive: | |
| number of transfers (incl.boost ports): | 7 |
| number of boost ports: | 3 |
| shape exhaust port: | single port (oval) |
| exhaust mounting: | flange |
| flange type: | 2 studs |
| exhaust bolt pitch: | 52 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: | 1,2mm |
| 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 | P140.0050/R, P1400050R, 140.0050/R |
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