40.0 mm replacement piston with a 2 mm L-shaped piston ring with internal circlip (IS) and a 1.5 mm rectangular piston ring with flank circlip (FS) for your Puch X30 Velux moped / moped with 40 mm cylinder.
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 | 40 mm |
| Ø outside piston (A) | 39.95 mm |
| Compression height (C) | 23.6 mm |
| Curvature (D) | 3.4 mm |
| Total piston height (E) | 49.4 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | L-ring, Rectangular ring |
| Ø piston pin (B) | 10 mm |
| Piston ring impact | Internal fuse (IS), Flank safety device (FS) |
| Piston ring height | 2 mm, 1.5 mm |
| Weight piston kit | 78 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
Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Manufacturer: GPO · Material: Steel · Surface: burnished · Width across flats: 10 mm · Width across flats: 17 mm · Number of components: 7 pcs · Total length: 130 mm · Area of application: (Dis)assembly tool
EUR 23.60
Explore categories from Piston
Moped fans also bought
Hot 
Wippermann drive chain No.18 (double reinforced)
Chain pitch: 1/2" x 3/16" · Chain type: 415H · Manufacturer: Wippermann · Material: Steel · Color: gray · Number of chain links: 114 pcs · Rolling circumference: 1448 mm · Chain lock type: Spring lock · Surface: blank / oiled · Ø bore: 4.2 mm · Ø Pin: 4.15 mm
EUR 40.20
Oil seal NBR 17/35/7 AS crankshaft | Puch X30
Shaft seal type: AS - With rubberized outer casing / one sealing lip / one dust lip. · Manufacturer: Puch · Material: NBR · Place of use: Crankshaft · Ø outside: 35 mm · Ø inside: 17 mm · Width: 7 mm · Temperature resistance (min.): -30 - 100 °C
EUR 9.40
Continental 2.00 - 2.50 x 19" tube
Manufacturer: Continental · Tire width: 2 - 2.5 " · Tire width: 2.25 - 2.5 " · Tire width: 2.5 " · Tire width [mm]: 25.8 - 63.5 · Width: 2 " · Width: 2 1/4 " · Width: 2 1/2 " · Tire height [%]: 100 · Old designation: 23 x 2 " · Old designation: 23 x 2.25 " · Old designation: 23 x 2.5 " · Valve type: TR6 car valve · Wheel size: 19 "
EUR 20.80
GPO gasket set 40 - 41 mm cylinder fan-cooled | Puch X30 NG-2AH, Velux
Manufacturer: GPO · Ø cylinder: 40 mm · Ø cylinder: 41 mm · Ø outlet inside: 22 mm · Hole spacing outlet: 42 mm · Number of components: 4 pcs · Hole pattern [mm]: 44 x 44 mm · Decompressor: Yes · Hole spacing inlet: 38 mm · Area of application: Tuning
EUR 10.60
swiing® revival stud bolt set M6x30 (10.9 strength) galvanized
Manufacturer: swiing® revival parts · Material: Steel · Diameter: 6 mm · Total length: 30 mm · Nominal diameter (thread): 6 mm · Surface: galvanized (blue) · Width across flats: 10 mm · Strength class: 8 · Strength class: 10.9 · Drive: External hexagon · Thread type: M6x1 (standard thread) · Thread length: 12 mm
EUR 12.70
Working late? Evening hours on Thursday until 20:00
