
38.4 mm aluminum cylinder with 50 cc displacement from the Italian brand manufacturer Athena Piaggio Ciao, Si, Bravo and Boxer mopeds / mopeds.
The cylinder is made of a special aluminum alloy. The running surface has a nickel-silicon carbide coating (colloquially known as Nikasil).
| Nominal diameter | 38.4 mm |
| Manufacturer | Athena |
| Material | Aluminum |
| Surface | sandblasted |
| Displacement | 50 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 45.7 mm |
| Ø Outlet outside | 22.5 mm |
| Ø outlet inside | 18 mm |
| Ø piston pin (B) | 10 mm |
| Number of fixing points | 3 pcs |
| Decompressor | Yes |
| Outlet type | clamped |
| Hole pattern [mm] | 35 x 55 |
| Camouflaged | No |
| Area of application | Tuning |
| Piaggio | Ciao - P, SC, PX, C24 Si Bravo / Super Bravo Boxer Grillo |
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