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.
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 |
Nominal diameter | 41 mm |
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
Manufacturer: GPO · Material: Steel · Surface: burnished · Area of application: (Dis)assembly tool · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Total length: 130 mm · Number of components: 7 pcs · Width across flats SW: 10 mm · Width across flats SW: 17 mm
CHF 19.90
GPO 41 mm cylinder kit fan-cooled 12 mm KoBo | Puch X30 Velux, N-2AH
Manufacturer: GPO · Manufacturer: Meteor Racing · Manufacturer: swiing · Material: Gray cast iron · Surface: sandblasted · Area of application: Tuning · Displacement: 60 ccm · Nominal diameter: 41 mm · Crankshaft stroke: 43 mm · Ø cylinder neck: 43.2 mm · Ø outlet inside: 19.4 mm · Ø Inlet inside: 14.6 mm · Number of fixing points: 4 pcs · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · Ø piston pin (B): 12 mm · Hole spacing outlet: 42 mm · Outlet type: straight · Hole pattern [mm]: 44 x 44 · Thread outlet: M6x1 (standard thread) · Camouflaged: No
CHF 109.90
Not in stock
Moped fans like you also bought:
swiing® ingenious flame tube 28 mm chrome | Puch X30 Velux
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Ø inside: 25 mm · Ø outside: 28 mm · Number of fixing points: 2 pcs · Total length: 380 mm · Hole spacing outlet: 42 mm · Mounting type: Stud bolts & nuts · Color: Chrome
CHF 39.90
GPO gasket set 40 - 41 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Area of application: Tuning · Ø cylinder: 40 mm · Ø cylinder: 41 mm · Ø outlet inside: 22 mm · Number of components: 4 pcs · Hole spacing inlet: 38 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes
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 · Ø cylinder: 41 mm · Ø outlet inside: 27 mm · Thickness: 0.4 mm · Thickness: 0.45 mm · Number of components: 4 pcs · Hole spacing inlet: 32 mm · Hole spacing outlet: 32 mm · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes · Area of application: Tuning
CHF 19.90
GPO 41 mm cylinder kit fan-cooled 12 mm KoBo | Puch X30 Velux, N-2AH
Manufacturer: GPO · Manufacturer: Meteor Racing · Manufacturer: swiing · Material: Gray cast iron · Surface: sandblasted · Area of application: Tuning · Displacement: 60 ccm · Nominal diameter: 41 mm · Crankshaft stroke: 43 mm · Ø cylinder neck: 43.2 mm · Ø outlet inside: 19.4 mm · Ø Inlet inside: 14.6 mm · Number of fixing points: 4 pcs · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · Ø piston pin (B): 12 mm · Hole spacing outlet: 42 mm · Outlet type: straight · Hole pattern [mm]: 44 x 44 · Thread outlet: M6x1 (standard thread) · 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 · Displacement: 57 ccm · Crankshaft stroke: 43 mm · 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 · 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) · Number of fixing points: 4 pcs · Hole pattern [mm]: 44 x 44 · Decompressor: No · Camouflaged: No · Area of application: Tuning
CHF 179.90
CHF 199.90