Piston set from ProX:

Details:

• OEM replacement
• Available as A and B pistons to increase cylinder life
• Forged pistons are stronger, the alloy is pressed into shape under extreme pressure, which allows the material structure to withstand higher pressure

Included in delivery: 
Piston, piston rings, gudgeon pin and circlips

For standard size pistons no subsequent drilling or honing of the cylinder is necessary. For oversized pistons, re-boring of the cylinder is necessary.