Forged and sealed 41 mm cylinder kit with 12 mm piston pin including gaskets and studs.
This tuning cylinder without sealing fits Puch X30 Velux and Puch X30 NG-2AH mopeds.
Please select the desired piston in the selection field.
Picture 1 shows the Meteor piston with molybdenum coating manufactured for swiing. This is characterized by its high-quality and precise workmanship.
The piston is more durable and provides minimal additional power compared to the standard piston, which can be seen in Figure 2.
Attention: On Velux engines, the small slot at the sealing surface to the cylinder base must be filled in to ensure that the cylinder kit is tight.
We recommend using the Wekem liquid metal for this purpose, which can be found in the accessories section.
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY.
Hole pattern [mm]: 44 x 44 · Manufacturer: GPO · Material: Gray cast iron · Surface: sandblasted · Displacement: 60 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 41 mm · 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 · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Decompressor: No · Camouflaged: No · Area of application: Tuning
Hole pattern [mm]: 44 x 44 mm · Manufacturer: GPO · Number of components: 4 pcs · Ø cylinder: 40 mm, 41 mm · Hole spacing inlet: 38 mm · Ø outlet inside: 22 mm · Hole spacing outlet: 42 mm · Decompressor: Yes · Area of application: Tuning
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Diameter: 5.95 mm · Thread type: M6x1 (standard thread) · Total length: 30 mm · Thread length: 12 mm · Strength class: 10.9
| Manufacturer | GPO, swiing, Meteor Racing |
| Area of application | Tuning |
| Material | Gray cast iron |
| Surface | sandblasted |
| Displacement | 60 ccm |
| Nominal diameter | 41 mm |
| Crankshaft stroke | 43 mm |
| Ø piston pin (B) | 12 mm |
| Ø cylinder neck | 43.2 mm |
| Hole spacing inlet | 32 mm |
| Ø outlet inside | 19.4 mm |
| Ø Inlet inside | 14.6 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing outlet | 42 mm |
| Hole pattern [mm] | 44 x 44 |
| Outlet type | straight |
| Number of fixing points | 4 pcs |
| Thread outlet | M6x1 (standard thread) |
| Camouflaged | No |
| Puch | ZA50 (fan-cooled) Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC |
Accessories & related products
WEKEM 2K liquid metal
Manufacturer: WEKEM · Material to be used: Aluminum · Material to be used: Ceramics · Material to be used: Metal · Material to be used: Steel · Material to be used: Wood · Area of application: Chemistry · Color: gray · Contents [ml]: 24 ml · Hazard warning: Causes serious eye irritation · Hazard warning: Causes skin irritation · Hazard warning: Harmful to aquatic organisms (with long-term effects) · Hazard warning: May cause allergic skin reactions · Hazard warning: Toxic to aquatic organisms (with long-term effects) · Signal word: Attention · Hazard pictogram: GHS07 - Caution dangerous · Hazard pictogram: GHS09 - Hazardous to the aquatic environment · Type of application: 2K · Alignment time: 240 sec · Temperature resistance (min.): -20 - 80 °C
EUR 23.70
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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) · Piston weight: 85 g
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swiing® ingenious needle roller bearing 12/15/14.2 original silver cage
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swiing® ingenious piston 41 mm (12 mm KoBo) "Racing" | Puch X30 Velux fan-cooled
Surface: molybdenum-coated · Nominal diameter: 41 mm · Manufacturer: swiing® ingenious parts · 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 · Piston weight: 94 g
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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) · Piston weight: 85 g
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swiing® ingenious 15 mm carburetor tuning camouflaged | Puch
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Manufacturer: GPO · Area of application: Tuning · Number of components: 4 pcs · Ø outlet inside: 22 mm · Hole spacing inlet: 38 mm · Ø cylinder: 40 mm · Ø cylinder: 41 mm · Hole pattern [mm]: 44 x 44 mm · Hole spacing outlet: 42 mm · Decompressor: Yes
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swiing® ingenious piston 41 mm (12 mm KoBo) "Racing" | Puch X30 Velux fan-cooled
Surface: molybdenum-coated · Nominal diameter: 41 mm · Manufacturer: swiing® ingenious parts · 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 · Piston weight: 94 g
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GPO secondary nozzle PHBG (size 30 - 62.5) of your choice
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Collection only possible with online purchase and appointment.
