S3 cast piston Ø53.95mm standard compression Beta Evo 125

S3 is the specialist in Trial and Enduro parts. Innovation and high quality are the key words guiding the design of the elements that will make a difference. Tested in all conditions, the S3 products are at the cutting edge of technology and equip the best riders and trial teams.

• Piston S3 Racing long life
• Forged or cast in high quality Aluminum-silicon
• Very light and resistant
• Reduce vibrations
• Engine revs build faster
• Supplied with nitrurated steel rings
• MOS2 piston coating.