Name Polini Cylinder Kit "Big Evolution" 94cc stroke=44mm Piaggio NRG / Runner Item No. P140.0208 Brand Polini Homologation No Displacement 94cc Stroke 44 mm Conrod Length 85 mm Product Line Hyper racing Material Aluminium Engine Type 2-stroke Cooling Type LC Bore 52 mm Piston Pin 13 mm Number of Piston Rings 1 Cylinder Head Included
The kit includes:
- 94cc Aluminium Cylinder “Big Evo”, d = 52mm / stroke = 44mm / conrod = 85mm, with 6 transfer ports and a bridged exhaust port
- Single-Ring Piston, 13mm pin, d = 52mm (for small end bearing 13x17x17.7mm)
- High-Compression Monobloc Cylinder Head
- Gasket Kit for mounting and adjusting squish
- Stud Bolt Set
This kit is the biggest cylinder kit for scooters available at the moment, with a 52mm piston and a 44mm stroke, it ends up having 94cc displacement giving it a lot of torque. The kit falls into the "Hyper Racing" category and can reach between 23 and 25hp, provided that it is combined with the right components (Polini exhaust "Evo 94cc" or Roost exhaust BE94 and a 28-34mm carburetor).
Note 1:The exhaust flange has a different angle than the original (Piaggio flat type) and can only be used with a Polini Big Evo 94cc exhaust (same series).
Note 2:This kit can only be mounted with crankshafts that have a 85mm connecting rod, 44mm stroke and a 13mm pin (small end bearing 13x17x17.7mm), and you'll have to mill in the crankcase to make room for crankshaft and 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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