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TFAST025

2Fast

2Fast Cylinder Kit 86cc stroke=44mm Yamaha Aerox / MBK Nitro

Out Of Stock

0.00€

"2Fast" - a name that stands for excellent performance! 2Fast 86cc Cylinder Kit (44mm stroke / 50mm diameter) MBK Nitro / Aerox (Minarelli horizontal LC), also available as tuning kit (cylinder kit + crankshaft), only for Minarelli engines.

These cylinders differ from the "old" 47.6mm ones regarding several features:

  • Exhaust port is divided and bridged (no auxiliary boost ports).
  • Transfer ports were redesigned to match the new size.
  • 50mm piston with 13mm pin (HQ Malossi piston Big Bore 86cc)
  • Designed for 90mm connecting rod, new cylinder head shape, etc.. 

It has to be used with crankshafts with 44mm stroke, a 90mm connecting rod and a 13mm piston pin (small end bearing 13x17x17.5mm). Definitely one of the most powerful cylinder kits available in this category, since it will give you 25/26hp out of the box, without any modifications!

To unlock the enormous potential of this kit, we recommend combining it with a 30mm carburetor (minimum), a digital internal rotor ignition and a "Hyper Racing +70cc" exhaust (the "2Fast 86cc exhaust" is probably the best exhaust to go with this kit).

NOTE: you'll have to mill in the crankcase to make room for the cylinder base and the 44mm crankshaft (instructions in manual).

Technical details
Article no.
TFAST025
Bore
50 mm
Brand
2Fast
Conrod Length
90 mm
Cylinder material
Aluminium
Displacement
86cc
Homologation
No
Piston Pin
13 mm
Product type
Cylinder kit
Stroke
44 mm
Tuning Level
High-end
Weight
1,47 kg
Vehicle
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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