43 mm replacement piston with two 1.5 mm rectangular piston rings with flank lock (FS) for Piaggio Ciao, Si, Bravo and 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.
| Nominal diameter | 43 mm |
| Manufacturer | Athena |
| Ø outside piston (A) | 42.9 mm |
| Compression height (C) | 26.52 mm |
| Curvature (D) | 2.4 mm |
| Total piston height (E) | 50.4 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 10 mm |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 1.5 mm |
| Tolerance group | A |
| Weight piston kit | 87 g |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
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