40.0 mm replacement piston for your Puch X30 Velux moped / moped and 2- and 3-speed small engine bikes MS, MV, MV50, VSD DS, VZ and MC models with 40 mm cylinder.
The piston kit includes two rectangular piston rings with flank lock (FS).
The piston kit contains piston pins, piston clips and piston rings.
You will find the appropriate assembly tools, piston pin locks and, if necessary, the corresponding cylinder in the accessories section.
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY.
| Manufacturer | GPO |
| Nominal diameter | 40 mm |
| Ø outside piston (A) | 39.94 mm |
| Compression height (C) | 22.5 mm |
| Curvature (D) | 3.4 mm |
| Total piston height (E) | 52.45 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 | 90 g |
| Puch | ZA50 (fan-cooled) Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC |
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