
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 positions and locking types on the legend in the pictures.
The piston kit contains piston pins, piston clips and piston rings.
You can find the corresponding assembly tools, piston rings, piston pin locks etc. in the accessories section.
| 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
Manufacturer: GPO · Material: Steel · Surface: burnished · 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 · Area of application: (Dis)assembly tool
EUR 22.90
Explore categories from Piston
Moped fans also bought
Wippermann drive chain No.18 (double reinforced)
Material: Steel · Manufacturer: Wippermann · Surface: blank / oiled · Chain pitch: 1/2" x 3/16" · Chain type: 415H · Ø Pin: 4.15 mm · Rolling circumference: 1448 mm · Number of chain links: 114 pcs · Chain lock type: Spring lock · Ø bore: 4.2 mm · Color: gray
EUR 39.10
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 · Place of use: Crankshaft · Material: NBR · Surface: rubberized · Ø outside: 35 mm · Ø inside: 17 mm · Width: 7 mm · Temperature resistance (min.): -30 - 100 °C
EUR 9.10
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 · Wheel size: 19 " · Valve type: TR6 car valve · Old designation: 23 x 2 " · Old designation: 23 x 2.25 " · Old designation: 23 x 2.5 "
EUR 17.90
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 · Hole spacing inlet: 38 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 mm · Number of components: 4 pcs · Decompressor: Yes
EUR 10.30
swiing® revival stud bolt set M6x30 (10.9 strength) galvanized
Drive: External hexagon · Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Total length: 30 mm · Diameter: 6 mm · Thread type: M6x1 (standard thread) · Strength class: 8 · Strength class: 10.9 · Thread length: 12 mm · Width across flats: 10 mm
EUR 12.30








