- Data Sheet
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Top Perfamces has responded to popular demand and assembled a tuning kit, finally available for scooters for a very good price: the Top Performances 86cc Tuning Kit (cylinder + 44mm stroke crankshaft) MBK Nitro / Aerox (Minarelli horizontal LC). With an excellent reputation regarding geared mopeds/mecaboites already established, Top Performances came up with this 86cc Aluminium Tuning Kit for scooters with horizontal Minarelli LC engines (MBK Nitro, Yamaha Aerox, etc.).
The cylinder is made of Nikasil-plated aluminium with a 50mm diameter and 44mm stroke, has 6 transfer ports, a bridged exhaust port and a modular high compression cylinder head. The exhaust port is very 'large' across its entire width giving it a unique look. Special attention was also given to the cylinder's external surface with a cooling canal enclosing the entire exhaust port for optimum cooling.
The crankshaft included in this Top Performances 86cc Tuning Kit MBK Nitro / Aerox is a reinforced full-circle racing crankshaft with 'extended' stroke - 44mm, 85mm conrod, small end bearing 12x15x15mm. One of the unique features characterizing high-end crankshafts is the use of Tungsten weights instead of standard 'caps' for balancing.
Regarding performance, the Top Performances 86cc Tuning Kit MBK Nitro / Aerox is a Hyper Racing kit and develops 20/22hp in combination with the proper components:
- min. 28mm carburetor
- digital inner rotor ignition
- “Hyper Racing” exhaust.
This Top Performances Tuning Kit 86cc (cylinder kit + 44mm stroke crankshaft) MBK Nitro / Aerox includes two crankshaft bearings (C3 Polyamide cages) and oil seals.
Note: the crankcase has to be milled to make room for the 44mm crankshaft, and also for the cylinder base (d=56mm).
Name Top Performances Tuning Kit 86cc cylinder kit + crankshaft stroke=44mm MBK Nitro / Aerox Item No. T9926560 Brand Top Performances Homologation No Homologation No Displacement 86cc Stroke Original Conrod Length Standard Product Line Hyper racing Material Aluminium Engine Type 2-stroke Cooling Type LC Bore 50 mm Piston Pin 12 mm Number of Piston Rings 1 Cylinder Head Included
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)