Replacement piston for the blown 41 mm cylinder with 12 mm piston pin and 2 pcs. 1.5 mm rectangular piston rings with flank lock (FS) suitable for Puch X30 Velux mopeds / mopeds.
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 | 41 mm |
| Manufacturer | swiing® ingenious parts |
| Surface | molybdenum-coated |
| Ø outside piston (A) | 40.95 mm |
| Compression height (C) | 22.5 mm |
| Curvature (D) | 3.5 mm |
| Total piston height (E) | 50 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 1.5 mm |
| Ø piston pin (B) | 12 mm |
| Weight piston kit | 94 g |
| Puch | ZA50 (fan-cooled) Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC |
Accessories & related products
GPO piston 41 mm (12 mm KoBo) | Puch X30 Velux, M50, MS50, VS50, DS50, VZ50
Manufacturer: GPO · Nominal diameter: 41 mm · Ø outside piston (A): 40.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 23.2 mm · Curvature (D): 3.7 mm · Total piston height (E): 49.3 mm · Number of piston rings (F): 2 pcs · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring impact: Internal fuse (IS) · Weight piston kit: 85 g
EUR 59.20
Piston 41 mm (10 mm KoBo) | Puch X30 Velux, M50, MS50, VS50, DS50, VZ50
Nominal diameter: 41 mm · Ø outside piston (A): 40.94 mm · Ø piston pin (B): 10 mm · Compression height (C): 23.25 mm · Curvature (D): 3.65 mm · Total piston height (E): 49.35 mm · Number of piston rings (F): 2 pcs · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Piston ring height: 2 mm · Weight piston kit: 85 g
EUR 59.20
GPO gasket set 40 - 41 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Number of components: 4 pcs · Ø cylinder: 40 mm · Ø cylinder: 41 mm · Hole spacing inlet: 38 mm · Ø outlet inside: 22 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes · Area of application: Tuning
EUR 10.60
swiing® ingenious piston 41 mm (10 mm KoBo) "Racing" | Puch X30 Velux fan-cooled
Manufacturer: swiing® ingenious parts · Surface: molybdenum-coated · Nominal diameter: 41 mm · Ø outside piston (A): 40.95 mm · Ø piston pin (B): 10 mm · Compression height (C): 22.5 mm · Curvature (D): 3.5 mm · Total piston height (E): 50 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring height: 1.5 mm · Thick piston ring: 1.7 mm · Weight piston kit: 93 g
EUR 82.90
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