A set of 43.5 mm compression rings consisting of an L-piston ring with internal circlip (IS) and a 1.5 mm rectangular piston ring with internal circlip (IS).
The rings fit the «GPO Metrakit» cylinder kit on your Puch Maxi S, N, X30 Sport NS, NL and Supermaxi LG1 and LG2 moped / moped.
The detailed dimensioning of the piston rings according to the technical drawing can be found in the details. You can also find out about the common piston rings, their dimensions and locking types on the legend in the pictures.
| Manufacturer | GPO |
| Thick piston ring | 1.7 mm |
| Height | 1.5 mm |
| Nominal diameter | 43.5 mm |
| Piston ring mold | L-ring, Rectangular ring |
| Piston ring impact | Internal fuse (IS), Flank safety device (FS) |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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