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Performance big bore kit for GY6 125cc & 150cc engine 

include bore size : cylinder jug ,piston kit + wrist pin (15mm) + clips +gasket    

easy install just bolt on no need to modify your engine.

this cylinder kit  Made in Taiwan,not China product.

this kit will fit to any following brand scooter /ATV/ Quads

equip with GY6  125cc /150cc or China cloned 152QMI / 157QMJ Model Engine. 

Kymco:  GY6 125/150cc

Honda:  GY6 125/150cc

SYM : GY6 125 /150cc ;Duke 125

TGB: all 150cc 4 strokes

VENTO / Yamati: 150cc 4 strokes  ,Phantom R4i 150, Strada RX150 

PGO: Bugster 150cc ,G-MAX 125cc

Bashan: 150cc GY6

Yongkang:  ATV / Quads(SR-ATV125A)

Lifan: 150cc LF150ST

Moto Roma: Urban quad 150,

and many others China made scooter from 125cc ~150cc

****this cylinder kit not work with following  Scooter & ATV engine

especially the engine code with "QJ"152QMI or QJ157QM,

Kazuma,"KAZUMA " KZM157QMJ QJ157qmj,

Baja Motorsports....and other from QJ company 125cc 150cc engine. because

the cylinder bolts pattern not the same.****