Powerful racing kit with 45 mm bore and diaphragm inlet suitable for various Puch mopeds and small motorcycles.
The housing does not need to be spindled for use. However, the racing set lock must be removed to use this cylinder.
| Nominal diameter | 45 mm |
| Manufacturer | Athena |
| Material | Aluminum |
| Area of application | Tuning |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 47.8 mm |
| Hole spacing inlet | 60 mm, 40 mm |
| Surface | sandblasted |
| Ø outlet inside | 26 mm |
| Ø Inlet inside | 16 mm |
| Inlet window | 38 x 25 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing outlet | 42 mm |
| Ø piston pin (B) | 12 mm |
| Number of fixing points | 4 pcs |
| Hole pattern [mm] | 44 x 44 |
| Outlet type | straight |
| Thread outlet | M6x1 (standard thread) |
| Decompressor | No |
| Camouflaged | No |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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