Name Polini Cylinder Kit "Big Evolution" 70cc Piaggio NRG / Runner Item No. P140.0207 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 Original Number of Piston Rings 1 Cylinder Head Included
The kit includes:
- 70cc Aluminium Cylinder, for 85mm conrod, with 6 transfer ports and bridged exhaust port
- Single-Ring Piston
- High-Compression Monobloc Cylinder Head
- Gasket Kit for mounting and adjusting squish
- Stud Bolt Set
- small end bearing, d=13mm (13x17x17.7mm)
The design of the kit was revised, among of the redesigned features:
- the kit got a fresh look as the cylinder was cast using the same mould as the 94cc cylinder.
- the exhaust port exit is equipped with a triangular adapter plate held in place by 3 screws (your exhaust flange will be mounted on this plate)
- the high-compression cylinder head is cast from one piece (monobloc) and precision machined (with internal water passage and centering pins)
Quality of materials and workmanship of this cylinder kit are definitely top-of-the-line.
Note 1: the exhaust flange has a different angle than the original exhaust port face and can only be used with a Polini Big Evo exhaust (same series).
Note 2: the Polini 70cc Cylinder Kit Evolution Piaggio NRG / Runner can only be mounted with a 85mm connecting rod (and a 17mm small end bearing), and you'll have to mill the crankcase to make room for the cylinder base.
- Suitable for (31)
Your product goes with the following manufacturers and their models:
SR 50cc Funmaster LC (after 07/2003) - Piaggio engine, SR 50cc LC (after 07/2003) - Piaggio Engine, SR 50cc R Factory i.e. LC (after 2005) - Piaggio Engine, SR 50cc R LC (after 2005) - Piaggio Engine, SR 50cc Racing LC (after 07/2003) - Piaggio Engine, SR 50cc Sport LC (after 07/2003) - Piaggio Engine, SR 50cc Street LC (after 07/2003) - Moteur Piaggio
Atlantis 50cc LC (after 06/2002) - Piaggio, GP1 50cc LC - Piaggio, GP 1 Open 50cc, GP1 Racing / Revolution 50cc LC - Piaggio, GP 1 Racing 50cc, GP 1 Replica 50cc, GP 1 Revolution 50cc
DNA 50cc LC, Runner 50cc LC (1999 - 2000), Runner 50cc LC (after 2004), Runner 50cc LC (before 1999), Runner 50cc LC CAT (after 2001), Runner SP 50cc LC (after 08/2004)
NRG 50cc LC, NRG Power DD 50 (after 2005), NRG mc2 50cc LC (after 1998), NRG mc2 50cc LC (before 1998), NRG mc2 DD 50cc LC (after 1998), NRG mc2 Extreme 50cc LC, NRG mc3 DD 50cc LC CAT, NTT 50cc LC, Quartz 50cc LC, Zip 2 SP 50cc LC, Zip SP 50cc LC
- Spare Parts
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