DetailsPolini, too, 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 Evo4 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 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. For those of you who are thinking about using this cylinder in racing: so far there are no racing classes that allow this cylinder to be used. The Top Class ends with 90cc max. while the Maxiscooter Class starts with 100cc, so you will have to wait for next year.
NOTE: Requires a crankshaft with 85mm conrod and 44mm stroke and the Polini BigEvolution 94cc exhaust!
- Additional Information
Name Cylinder Polini Big Evolution 94cc Item No. P166.0111 Brand Polini Homologation No 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
- Fits to (38)
Your product goes with the following manufacturers and their models:
Area 51 LC, Gulliver 50cc LC, Rally 50cc LC, SR 50cc LC (1994 - 1997) - Minarelli horiz., SR 50cc Netscaper LC - Minarelli horiz., SR 50cc Racing LC (before 2000) Minarelli, SR 50cc Stealth LC - Minarelli horiz., Sonic 50cc LC
491 50cc RR LC (before 2003) - Minarelli horiz., 491 50cc RR Replica LC (before 2003) - Minarelli horiz., 491 50cc ST LC (before 2003) - Minarelli horiz., 491 50cc Sport LC (before 2003) - Minarelli horiz., K2 50cc LC - Minarelli horiz.
Ark 50cc LC - Minarelli horiz., Eikon 50cc LC - Minarelli horiz.
Dragster 50cc LC
Ark 50cc LC
MachG 50cc CAT LC (after 2003), MachG 50cc LC (before 2003), Nitro 50cc CAT LC (after 2003), Nitro 50cc LC (after 1999), Nitro 50cc LC (after 2013), Nitro 50cc LC (before 1999), Nitro Naked 50cc LC, Nitro Naked 50cc LC (after 2013)
F12 Phantom 50cc LC, F12 Phantom 50cc LC (after 2004), F12 Phantom R 50cc LC, F15 Firefox 50cc LC, F15 Firefox 50cc LC (after 2004)
Aerox 50cc LC (after 1999), Aerox 50cc LC (before 1999), Aerox 50cc LC CAT (after 2003), Aerox Naked 50cc LC (after 2013) , Aerox Naked 50cc LC CAT (after 2003), Aerox R 50cc LC (after 2013), Jog RR 50cc LC (before 2003), Jog RR 50cc LC CAT (after 2003)