38 mm replacement piston with two rectangular piston rings with flank lock (FS) suitable for original windage-coated aluminum cylinders with nickel-silicon carbide coating (colloquially known as Nikasil) from Puch Maxi S / N, as well as Puch X30 Sport mopeds.
Also suitable for blued cast iron cylinders of Puch X30 NG-2A / NG-2AH, as well as Puch X30 Velux mopeds.
The detailed dimensioning 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 | 38 mm |
| Manufacturer | GPO |
| Ø outside piston (A) | 37.96 mm |
| Compression height (C) | 22.7 mm |
| Curvature (D) | 3.3 mm |
| Total piston height (E) | 55 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Flank safety device (FS) |
| Ø piston pin (B) | 12 mm |
| Tolerance group | 2 |
| Weight piston kit | 79 g |
| Puch | E50 ZA50 (air-cooled) ZA50 (fan-cooled) Z50 (X30 Sport) Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC |
Ratings
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Material: Steel · Surface: burnished · Area of application: (Dis)assembly tool · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Number of components: 7 pcs · Total length: 130 mm · Width across flats: 10 mm · Width across flats: 17 mm
EUR 24.20
GPO gasket set 38 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Ø cylinder: 38 mm · Ø outlet inside: 22 mm · Hole spacing inlet: 38 mm · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm · Area of application: Standard · Number of components: 4 pcs · Decompressor: Yes
EUR 10.80
GPO gasket set cylinder original | Puch Maxi S, N / X30 NS, NL, N-2AH
Manufacturer: GPO · Material: Aluminum · Material: Sealing carton · Material: Sealing paper · Ø outlet inside: 22 mm · Ø cylinder: 38 mm · Thickness: 0.3 mm · Thickness: 0.4 mm · Thickness: 1.8 mm · Area of application: Standard · Hole spacing inlet: 32 - 38 mm · Hole spacing outlet: 42 mm · Number of components: 4 pcs · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes
EUR 9.00
Moped fans also bought
GPO gasket set | Puch E50
Manufacturer: GPO · Material: Aluminum · Material: Fiber · Material: Sealing carton · Material: Sealing paper · Ø outlet inside: 19.9 mm · Number of components: 7 pcs · Hole spacing inlet: 32 - 38 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 · Decompressor: Yes · Area of application: Standard
EUR 12.00
Hot 
Gas cable Ø 1.25 mm x 220 cm (cylindrical nipple) Bing
Ø Stranded wire: 1.25 mm · Cable length: 2200 mm · Nipple shape: Cylinder · Ø nipple: 3 mm · Manufacturer: Made in Germany · Material: Steel · Surface: galvanized (blue) · Number of components: 1 pcs · Nipple length: 5 mm · Area of application: Standard
EUR 2.90
swiing® revival bottom bracket bushing nylon | Puch Maxi, X30 Sport, Velux, NG-2AH
Manufacturer: swiing® revival parts · Material: Nylon · Surface: blank · Ø inside: 16.2 mm · Bearing type: Plain bearing · Ø outside: 20.2 mm · Total length: 19 mm · Color: black · Ø Bundle: 24.1 mm · Puch OEM number: 349.1.42.005.1
EUR 3.05
swiing® revival stud bolt set M6 x 106 | Puch
Diameter: 5.9 mm · Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Total length: 106 mm · Drive: External hexagon · Thread type: M6x1 (standard thread) · Width across flats: 10 mm · Thread length: 13 mm · Thread length: 18.5 mm · Alternative version of the Puch OEM number: 360.1.10.034.1
EUR 9.00
GPO gasket set 38 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Ø cylinder: 38 mm · Ø outlet inside: 22 mm · Hole spacing inlet: 38 mm · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm · Area of application: Standard · Number of components: 4 pcs · Decompressor: Yes
EUR 10.80
38 mm cylinder kit fan-cooled 12 mm KoBo | Puch Velux, NG-2AH
Nominal diameter: 38 mm · Material: Gray cast iron · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Thread inlet: M6x1 (standard thread) · Area of application: Tuning · Hole spacing inlet: 32 mm · Number of fixing points: 4 pcs · Ø piston pin (B): 12 mm · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Camouflaged: No
EUR 103.10
Collection only possible with online purchase and appointment.
