Performance 54MM 14MM 78MM Cylinder kit Change 125CC to 138CC 1P54FMJ Engine Kaya Xmotos Apollo Tmax Pit Dirt Bike Parts

Performance 54MM 14MM 78MM Cylinder kit Change Lifan ZongShen 125CC to 138CC Engine Kaya Xmotos Apollo Tmax Pit Dirt  Bike

These parts fit For Dirt and Pit bike,fit for Lifan,ZongShen,Kaya,Xmotos,Apollo orion ,Loncin,KTM,kids dirt bikes

For Displacement,include 50cc,70CC,110cc,125cc,138CC,140CC,150cc,160CC,200CC,250cc,etc

1) Cylinder
Middle Height :78.3mm

Total Height :98mm,

Diameter :54mm

Outer diameter of skirt:58.5mm
2) Piston kit
Total height:39.5mm
Compress height:19.2mm
Pin:14mm
3) Up and down gasket