Name Polini Cylinder Kit 70cc P.R.E. Piaggio Zip SP LC Item No. P140.0219 Brand Polini Homologation No Displacement 70cc Stroke Original Conrod Length 85 mm Product Line Hyper racing Material Aluminium Engine Type 2-stroke Cooling Type LC Bore 47,6 mm Piston Pin 12 mm Number of Piston Rings 1 Cylinder Head Included
Italian tuning specialists Polini are introducing their outstanding P.R.E. racing kit (Polini Racing Engine), and this is the engine's heart: Polini Cylinder P.R.E. 70cc Piaggio. The cylinder was designed to be combined with other P.R.E. components - crankshaft, crankcase, intake etc.
The cylinder is based on Polini's 125cc GP cylinder, the well-known racing kit that was used successfully at several Moto GP World Championships. It differs quite a bit from Polini's equally famous "Big Evo" cylinders in so far as stud bolt layout is completely different, allowing for much bigger cooling channels (close-deck system) and a very large exhaust port with central bridge. The cylinder head is the same as the one used in the GP 125cc kits, with a 6-scew fixing system and special combustion chamber.
- standard stroke
- 85mm connecting rod
- 1-ring piston, 12mm piston pin
- 5 transfer ports
- bridged exhaust port (for 3-screw flange)
- monobloc cylinder head
Note: due to the different stud bolt placement, this P.R.E. 70cc cylinder cannot be mounted with original crankcases. You can only use it with Polini's P.R.E. crankcase.
Not street-legal, designed for racing!
- Suitable for (21)
Your product goes with the following manufacturers and their models:
Quartz 50cc LC, Sfera 1st series 50cc AC (1991 - 1994), Sfera NSL 50cc AC, Sfera RST 50cc AC, Vespa S 50cc 2-stroke AC, Zip 1st series 50cc AC (1991 - 1994), Zip 2 50cc AC CAT (after 1999), Zip 2 SP 50cc LC, Zip Base 50cc AC (after 1999), Zip Base 50cc AC (before 1999), Zip FastRider 50cc AC, Zip SP 50cc LC, Zip SSL 25 (after 1999), Zip SSL 25 (before 1999)
ET2 50cc AC ZAPC 16000, ET2 50cc AC after 2000 ZAPC38100, LX 50cc AC - 2-stroke, LXV 50cc 2-stroke AC, Primavera 50cc 2T AC after 13, S 50cc 2T AC after 07, Sprint 50cc 2T AC after 14
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