YX 140cc Race Piston Kit 57mm Big Bore
 
Also Fits - Zongshen Z140

Brand new YX140cc Race Piston Kit For Gen4 Onwards engine.
 
This Piston WILL NOT Fit A Standard 56mm Barrel. It is for a 57mm Barrel that has been bored out.

Item Includes:
•1x Piston 57mm
•Piston Rings
•Piston Pin
•Piston pin clips