A set of 45 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 |
| Nominal diameter | 45 mm |
| Height | 1.5 mm |
| Piston ring mold | L-ring, Rectangular ring |
| Piston ring impact | Internal fuse (IS), Flank safety device (FS) |
| Thick piston ring | 1.7 mm |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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Manufacturer: GPO · Material: Aluminum · Nominal diameter: 45 mm · Ø outside piston (A): 44.93 mm · Ø piston pin (B): 12 mm · Compression height (C): 23.25 mm · Curvature (D): 2.85 mm · Total piston height (E): 49.6 mm · Number of piston rings (F): 2 pcs · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.55 mm · Piston ring height: 2 mm · Thick piston ring: 1.8 mm · Thick piston ring: 1.9 mm · Weight piston kit: 98 g
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Manufacturer: GPO · Nominal diameter: 43.5 mm · Thick piston ring: 1.7 mm · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring impact: Internal fuse (IS) · Height: 1.5 mm
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