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Cylinder Polini Big Evolution 84cc

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Polini Item no.: P140.0209

Cylinder Polini Big Evolution 84cc

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Suggested retail price: €400.00

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€349.90

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Description

Details

Polini also ventures into the cylinder classes above 70cc. With the BigEvolution 52mm, Polini introduces two cylinders, either with 84cc (which means with original 39.3mm stroke) or with 94cc (which requires a 44mm long-stroke crankshaft). The bore here is 52mm, i.e. 2mm more than Malossi’s BigBore cylinders, which is basically as far as you can go before you get into trouble with the cylinder studs. The outside shape is the same as the one used for the new Evo IV cylinders. Performancewise, the 84cc version should be on one level with the 70cc cylinder, with noticeably more torque, though. If you want more and don’t mind re-working the crankcase, we recommend the 94cc version in conjunction with a 44mm long-stroke crankshaft with 85mm connecting rod, which will yield performance in the upper 20hp region.
Requires a crankshaft with 85mm conrod!
Additional Information
Name Cylinder Polini Big Evolution 84cc
Item No. P140.0209
Brand Polini
Homologation No
Displacement 84cc
Stroke Original
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
Reviews
Fits to (31)

Your product goes with the following manufacturers and their models:



Aprilia
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


Derbi
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


Gilera
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)


Piaggio
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