
43.5 mm piston kit with a 1.2 mm rectangular piston ring with internal fuse (IS) for the Polini racing kit on your Puch moped / moped.
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.
| Manufacturer | Polini |
| Nominal diameter | 43.5 mm |
| Ø outside piston (A) | 43.47 mm |
| Compression height (C) | 23 mm |
| Curvature (D) | 3.6 mm |
| Total piston height (E) | 50.55 mm |
| Number of piston rings (F) | 1 pcs |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 12 mm |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1.2 mm |
| Tolerance group | C |
| Weight piston kit | 92 g |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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Manufacturer: Polini · Material: Aluminum · Surface: Nickel silicon carbide (colloquially known as Nikasil) · Crankshaft stroke: 43 mm · Nominal diameter: 43.5 mm · Displacement: 65 ccm · Hole spacing inlet: 32 mm · Hole spacing inlet: 39 mm · Ø cylinder neck: 48 mm · Camouflaged: No · Number of fixing points: 4 pcs · Ø outlet inside: 22 mm · Ø piston pin (B): 12 mm · Inlet window: 26 x 21 mm · Thread inlet: M5x0.8 (standard thread) · Hole pattern [mm]: 44 x 44 · Hole spacing outlet: 42 mm · Outlet type: straight · Thread outlet: M6x1 (standard thread) · Area of application: Racing · Area of application: Tuning
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Polini piston 43.5 mm type A | Puch
Manufacturer: Polini · Nominal diameter: 43.5 mm · Ø outside piston (A): 43.45 mm · Compression height (C): 23 mm · Curvature (D): 3.6 mm · Total piston height (E): 50.55 mm · Number of piston rings (F): 1 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Ø piston pin (B): 12 mm · Piston ring height: 1.2 mm · Tolerance group: A · Weight piston kit: 93 g
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Polini piston 43.5 mm type D | Puch
Manufacturer: Polini · Nominal diameter: 43.5 mm · Ø outside piston (A): 43.48 mm · Compression height (C): 23 mm · Curvature (D): 3.6 mm · Total piston height (E): 50.55 mm · Number of piston rings (F): 1 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Ø piston pin (B): 12 mm · Piston ring height: 1.2 mm · Tolerance group: D · Weight piston kit: 93 g
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