43 mm replacement piston with one 2 mm L-shaped piston ring with internal circlip (IS) and one rectangular piston ring with flank circlip (FS) for Piaggio Ciao, SI, Bravo, Boxer mopeds / mopeds with 43 mm Athena cylinder kit.
The detailed dimensions of the piston according to the technical drawing can be found in the details. You can also find out about the relevant piston rings, their stems and locking types on the legend in the pictures.
| Manufacturer | Athena |
| Nominal diameter | 43 mm |
| Ø outside piston (A) | 42.93 mm |
| Ø piston pin (B) | 12 mm |
| Compression height (C) | 26.25 mm |
| Curvature (D) | 4 mm |
| Total piston height (E) | 52.6 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | L-ring, Rectangular ring |
| Piston ring impact | Internal fuse (IS), Flank safety device (FS) |
| Piston ring height | 2 mm |
| Tolerance group | A |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
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