
Original 39 mm cylinder incl. head for your Zündapp Belmondo moped / moped.
Fits Zündapp Belmondo mopeds, Zündapp Bergsteiger M25/M50 mopeds, as well as Alpa Spezial 3000 and Alpa Black River small motorcycles that have a Zündapp type 247 engine installed.
The high-quality cylinder including cylinder head from the quality brand swiing® ingenious paired with the legendary VERTEX piston in OEM quality is guaranteed to exceed all expectations and set new milestones in the moped scene.
With the right setting, you can get a whopping 1.6 hp on the rear wheel. For those who want a little more steam, you can switch to the 39 mm or 44 mm tuning cylinder.
Hole pattern [mm]: 44 x 42 · Manufacturer: swiing® ingenious parts · Material: Aluminum · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 39 mm · Ø cylinder neck: 48 mm · Ø Inlet inside: 9.2 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 40 mm · Ø piston pin (B): 18.5 mm · Outlet type: slanted · Hole spacing outlet: 40 mm · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Decompressor: No · Camouflaged: No
Manufacturer: swiing® revival parts · Material: Rubber, Steel · Ø inside: 8.2 mm · Ø outside: 19 mm · Ø Bundle: 25.5 mm · Total length: 21 mm
| Nominal diameter | 39 mm |
| Manufacturer | swiing® ingenious parts |
| Material | Aluminum |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 50 ccm |
| Crankshaft stroke | 42 mm |
| Ø cylinder neck | 48 mm |
| Ø Inlet inside | 9.2 mm |
| Hole spacing inlet | 40 mm |
| Ø piston pin (B) | 18.5 mm |
| Number of fixing points | 4 pcs |
| Thread inlet | M6x1 (standard thread) |
| Hole pattern [mm] | 44 x 42 |
| Hole spacing outlet | 40 mm |
| Outlet type | slanted |
| Thread outlet | M6x1 (standard thread) |
| Zündapp | Belmondo (Type 247-71) |
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swiing® ingenious piston 39 mm Vertex | Zündapp Belmondo, Bergsteiger
Nominal diameter: 39 mm · Manufacturer: swiing® ingenious parts · Ø outside piston (A): 38.95 mm · Compression height (C): 26.3 mm · Curvature (D): 1.5 mm · Total piston height (E): 51.5 mm · Number of piston rings (F): 1 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Oblique push · Ø piston pin (B): 12 mm · Piston ring height: 1.5 mm · Weight piston kit: 82 g
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swiing® revival connecting rod | Zündapp
Manufacturer: swiing® revival parts · Material: Steel · Surface: copper-coated · Connecting rod length center-center: 91 mm · Ø Connecting rod bolt: 16 mm · Ø lower connecting rod eye outside: 27 mm · Thickness: 10 mm · Ø upper connecting rod eye outside: 23 mm · Ø piston pin (B): 12 mm · Ø lower bearing inside: 21 mm · Ø inside upper bearing: 15 mm · Dimension lower bearing: 16/21 x 9.7 mm · Dimension upper bearing: 12/15 x 14.2 mm · Connecting rod pin length: 33.8 mm · Total length: 115 mm · Area of application: Standard · Area of application: Tuning
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swiing® ingenious 39 mm cylinder kit tuning with head | Zündapp Belmondo
Nominal diameter: 39 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 42 mm · Ø cylinder neck: 48 mm · Ø outlet inside: 18.6 mm · Inlet window: 20.7 x 13 · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 40 mm · Ø piston pin (B): 12 mm · Outlet type: slanted · Hole spacing outlet: 40 mm · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Hole pattern [mm]: 44 x 44 · Camouflaged: No · Area of application: Tuning
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swiing® ingenious 44 mm cylinder kit tuning with head | Zündapp Belmondo
Nominal diameter: 44 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Surface: sandblasted · Displacement: 65 ccm · Crankshaft stroke: 42 mm · Ø cylinder neck: 48 mm · Ø outlet inside: 21.3 mm · Inlet window: 22.3 x 15.5 · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 38 mm · Ø piston pin (B): 12 mm · Outlet type: slanted · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Hole pattern [mm]: 44 x 44 · Camouflaged: No · Area of application: Tuning
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Manufacturer: GPO · Area of application: Tuning · Ø outlet inside: 22 mm · Ø cylinder: 40 mm · Ø cylinder: 41 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
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