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DetailsPolini 70cc Cylinder Kit Evolution 2010 MBK Nitro / Aerox (Minarelli horizontal LC, 12mm), a 70cc "Hyper Racing" kit in Polini's "Big Evo" series.
The kit includes:
70cc Aluminium Cylinder Evolution 2010 for 85mm conrod, with 6 transfer ports and bridged exhaust port
Single-Ring Piston, 12mm pin
High-Compression Monobloc Cylinder Head Evo 2010
Gasket Kit for mounting and adjusting squish clearance
Technically speaking, the Polini 70cc Cylinder Kit Evolution 2010 MBK Nitro / Aerox is a Nikasil-plated aluminium cylinder with 6 transfer ports and a divided, bridged exhaust port (new shape). It comes with a top quality one-ring piston (d = 47.9mm, 12mm piston pin) and a special monobloc cylinder head.
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 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 (Piaggio flat type) and can only be used with a Polini Big Evo exhaust (same series).
Note 2: This kit can only be mounted with crankshafts that have a 85mm connecting rod and a 12mm pin, and you'll have to mill the crankcase to make room for the cylinder base.
Name Polini Cylinder Kit "Evolution 2010" 70cc Yamaha Aerox / MBK Nitro Item No. P166.0110 Brand Polini Homologation No Displacement 70cc Stroke Original Conrod Length 85 mm Product Line Hyper racing Material Aluminium Bore 47,6 mm Piston Pin 12 mm
Your product goes with the following manufacturers and their models:
Adly (Her Chee)
AirTech 50cc LC
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.
GTR 50cc LC - Minarelli horiz.
GSP 50cc LC
Dragster 50cc LC
Ark 50cc LC
Galactica 3.0 50cc LC
Speedjet 50 LC 2-stroke
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)
Crogen RS 50cc LC 2-stroke
Magnet RS 50cc LC 2-stroke
Speedjet RS 50cc LC
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)