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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 casted in high quality Aluminium-silicium
- Very light and resistant
- Reduce vibrations
- Engine revs build faster
- Supplied with nitrurated steel rings
- MOS2 piston coating.
