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T9926560
Top Performances Tuning Kit 86cc cylinder kit + crankshaft stroke=44mm Yamaha Aerox / MBK Nitro
Delivery from German Warehouse - Aptuvenais pieejamības datums: 18.02.2026.
Out Of Stock
479.00€ 621.00€
Price in reward points: 4800
Top Perfamces has responded to popular demand and assembled a tuning kit, finally available for scooters here at Maxiscoot 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).
- Article no.
- T9926560
- Bore
- 50 mm
- Brand
- Top Performances
- Conrod Length
- 85 mm
- Cylinder material
- Aluminium
- Displacement
- 86cc
- EAN
- 9926560
- Homologation
- No
- Piston Pin
- 12 mm
- Product type
- Engine pack
- Stroke
- 44 mm
- Tuning Level
- High-end
- Weight
- 3,84 kg
- Adly (Her Chee)
- AirTech 50cc LC;
- Aprilia
- Area 51 LC;Gulliver 50cc LC;Rally 50cc LC;Sonic 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.;
- Benelli
- 491 50cc RR LC (before 2003) - Minarelli horiz.;491 50cc RR Replica LC (before 2003) - Minarelli horiz.;491 50cc Sport LC (before 2003) - Minarelli horiz.;491 50cc ST LC (before 2003) - Minarelli horiz.;K2 50cc LC - Minarelli horiz.;
- Beta
- Ark 50cc LC - Minarelli horiz.;Eikon 50cc LC - Minarelli horiz.;Ycon;
- CPI
- GTR 50cc LC - Minarelli horiz.;
- Garelli
- GSP 50cc LC;
- Italjet
- Dragster 50cc LC;
- Kreidler
- Galactica 3.0 50cc LC;
- KTM
- Ark 50cc LC;
- Longjia
- Speedjet 50 LC 2-stroke;
- Malaguti
- 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);
- MBK
- 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);
- Motowell
- Crogen RS 50cc LC 2-stroke;Magnet RS 50cc LC 2-stroke;
- None
- None
- Sachs
- Speedjet RS 50cc LC;
- Yamaha
- 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);
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