Powerful racing kit with 45 mm bore and reed valve intake suitable for various Puch mopeds and small motorcycles.
When using a larger carburetor and a racing exhaust, a power increase of up to 6 hp can be achieved.
The housing does not need to be spindled for use. However, the racing kit lock must be removed to use this cylinder.
| Material | Aluminum |
| Manufacturer | Athena |
| Camouflaged | No |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Surface | sandblasted |
| Nominal diameter | 45 mm |
| Ø cylinder neck | 47.8 mm |
| Ø Inlet inside | 20.5 mm |
| Inlet window | 22 x 27.5 |
| Ø piston pin (B) | 12 mm |
| Number of fixing points | 4 pcs |
| Ø outlet inside | 24 mm |
| Thread inlet | M5x0.8 (standard thread) |
| Hole spacing outlet | 42 mm |
| Hole spacing inlet | 31.5 mm |
| Outlet type | straight |
| Thread outlet | M6x1 (standard thread) |
| Hole pattern [mm] | 44 x 44 |
| Decompressor | No |
| Area of application | Tuning |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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Manufacturer: Athena · Ø outside piston (A): 44.94 mm · Compression height (C): 22.4 mm · Curvature (D): 3.15 mm · Total piston height (E): 52.67 mm · Number of piston rings (F): 1 pcs · Nominal diameter: 45 mm · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Ø piston pin (B): 12 mm · Piston ring height: 1.5 mm · Tolerance group: A · Piston weight: 98 g
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Collection only possible with online purchase and appointment.
