40 mm replacement piston with two pieces of 2 mm rectangular piston rings with flange lock suitable for the old Cilo 502 mopeds / mopeds with 40 mm 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 | 40 mm |
| Manufacturer | swiing® ingenious parts |
| Ø outside piston (A) | 39.93 mm |
| Compression height (C) | 27.9 mm |
| Curvature (D) | 5.1 mm |
| Total piston height (E) | 54 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 12 mm |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 2 mm |
| Thick piston ring | 1.65 mm |
| Weight piston kit | 93 g |
| Cilo | 502 / 502t |
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