41.0 mm replacement piston with a rectangular piston ring with flank circlip (FS) and an L-shaped piston ring with internal circlip (IS) for the blown 41 mm Puch X30 Velux mopeds / mopeds and M50, MS50, VS50, DS50, VZ50 small engine bikes with 12 mm piston pin.
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 | 41 mm |
| Manufacturer | GPO |
| Ø outside piston (A) | 40.94 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, Rectangular ring |
| Piston ring impact | Internal fuse (IS), Flank safety device (FS) |
| Ø piston pin (B) | 12 mm |
| Piston weight | 85 g |
| Puch | ZA50 (fan-cooled) Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Width across flats SW: 10 mm · Width across flats SW: 17 mm · Total length: 130 mm · Manufacturer: GPO · Material: Steel · Surface: burnished · Number of components: 7 pcs · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Area of application: (Dis)assembly tool
CHF 19.90
GPO 41 mm cylinder kit fan-cooled 12 mm KoBo | Puch X30 Velux, N-2AH
Surface: sandblasted · Nominal diameter: 41 mm · Manufacturer: GPO · Manufacturer: Meteor Racing · Manufacturer: swiing · Material: Gray cast iron · Area of application: Tuning · Displacement: 60 ccm · Crankshaft stroke: 43 mm · Number of fixing points: 4 pcs · Ø cylinder neck: 43.2 mm · Ø outlet inside: 19.4 mm · Ø Inlet inside: 14.6 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · 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
CHF 109.90
Not in stock
Moped fans like you also bought:
swiing® ingenious flame tube 28 mm chrome | Puch X30 Velux
Total length: 380 mm · Manufacturer: swiing® ingenious parts · Ø inside: 25 mm · Ø outside: 28 mm · Material: Steel · Surface: chrome-plated · Color: Chrome · Mounting type: Stud bolts & nuts · Hole spacing outlet: 42 mm · Number of fixing points: 2 pcs
CHF 39.90
GPO gasket set 40 - 41 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Number of components: 4 pcs · Ø outlet inside: 22 mm · Ø cylinder: 40 mm · Ø cylinder: 41 mm · Hole spacing inlet: 38 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes · Area of application: Tuning
CHF 8.90
GPO cylinder gasket set BAD ASS Lucifer / GPO Sombrero 41 mm | Puch X30 Velux, M50, MS
Manufacturer: GPO · Material: Aluminum · Material: Sealing paper · Area of application: Tuning · Ø cylinder: 41 mm · Number of components: 4 pcs · Ø outlet inside: 27 mm · Thickness: 0.4 mm · Thickness: 0.45 mm · Hole spacing inlet: 32 mm · Decompressor: Yes · Hole spacing outlet: 32 mm · Hole pattern [mm]: 44 x 44 mm
CHF 19.90
GPO 41 mm cylinder kit fan-cooled 12 mm KoBo | Puch X30 Velux, N-2AH
Surface: sandblasted · Nominal diameter: 41 mm · Manufacturer: GPO · Manufacturer: Meteor Racing · Manufacturer: swiing · Material: Gray cast iron · Area of application: Tuning · Displacement: 60 ccm · Crankshaft stroke: 43 mm · Number of fixing points: 4 pcs · Ø cylinder neck: 43.2 mm · Ø outlet inside: 19.4 mm · Ø Inlet inside: 14.6 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · 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
CHF 109.90
Not in stock
GPO Ø 41 mm "Sombrero" cylinder kit | Puch X30 Velux, NG-2AH
Nominal diameter: 41 mm · Manufacturer: GPO · Material: Gray cast iron · Area of application: Tuning · Displacement: 57 ccm · Crankshaft stroke: 43 mm · Number of fixing points: 4 pcs · Ø cylinder neck: 44.7 mm · Ø outlet inside: 25 mm · Ø Inlet inside: 19 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · Decompressor: No · Ø piston pin (B): 10 mm · 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
CHF 179.90
CHF 199.90
Not in stock
Collection only possible with online purchase and appointment.
