Not so nice 
43 mm tuning cast cylinder with 63 cc and 12 mm KoBo suitable for your Piaggio Si, Bravo 2 and 3 as well as Grillo moped / moped.
All necessary parts are included in the scope of delivery, including the matching cylinder head for installation.
Notes: We recommend using this tuning cylinder in conjunction with a larger exhaust and a larger carburetor. This racing cylinder may still have residue from the manufacturing process. For this reason, the cylinder should be cleaned with compressed air or brake cleaner before installation. This should be between 0.15 - 0.4 mm to prevent the piston from jamming. Please observe the installation direction when assembling. The piston is inserted with the arrow pointing towards the outlet on the exhaust side.
Manufacturer: Olympia · Material: Gray cast iron · Surface: varnished · Displacement: 63 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 43 mm · Ø cylinder neck: 46 mm · Ø Outlet outside: 22.3 mm · Ø piston pin (B): 12 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Decompressor: Yes · Camouflaged: No · Area of application: Tuning
Manufacturer: Olympia · Ø cylinder: 41 - 43 mm · Area of application: Racing
| Nominal diameter | 43 mm |
| Manufacturer | Olympia |
| Area of application | Tuning |
| Surface | varnished |
| Displacement | 63 ccm |
| Crankshaft stroke | 43 mm |
| Material | Gray cast iron |
| Ø cylinder neck | 46 mm |
| Ø Outlet outside | 22.3 mm |
| Ø piston pin (B) | 12 mm |
| Number of fixing points | 3 pcs |
| Outlet type | clamped |
| Decompressor | Yes |
| Camouflaged | No |
| Piaggio | Si Bravo / Super Bravo Grillo |
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