The revised 2021 version of the well-known cylinder kit from Malossi for Piaggio Ciao, Bravo 1 and Boxer mopeds / mopeds.
This is the version with 12 mm piston pin.
This cast iron cylinder with 73.5 cc offers a very good increase in performance over the entire rev range.
The workmanship is very clean and the matching of the piston windows to the overflow channels and boost parts is also very good. The webs in the area of the cylinder head significantly reduce the risk of piston jamming and make the cylinder extremely durable.
The reworked cylinder head in combination with the copper gasket also ensures very high compression values.
With the reworking, the triangular shape of the cylinder head was adapted to a longitudinal shape. As a result, the cylinder fits much better on racing bikes, such as the Polini Speed Engine.
Further attachments and, for example, a spark plug with long thread can be found in the accessories section.
Quality product from the Italian manufacturer Malossi.
The set includes the following fixed parts:
Manufacturer: Malossi · Material: Gray cast iron · Surface: sandblasted · Displacement: 73 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 46.5 mm · Ø piston pin (B): 12 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Decompressor: Yes · Camouflaged: No · Area of application: Tuning · Ø cylinder neck: 50 mm · Ø Outlet outside: 22.4 mm · Ø outlet inside: 18.1 mm · Hole pattern [mm]: 55 x 34
Manufacturer: Malossi · Ø cylinder: 44 - 47 mm · Area of application: Racing
Details
| Nominal diameter | 46.5 mm |
| Manufacturer | Malossi |
| Area of application | Tuning |
| Material | Gray cast iron |
| Surface | sandblasted |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | clamped |
| Number of fixing points | 3 pcs |
| Decompressor | Yes |
| Camouflaged | No |
Suitable for the following models
| Piaggio | Si Bravo / Super Bravo Grillo |
Accessories & related products
Malossi piston 46.5 mm (12 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Nominal diameter: 46.5 mm · Ø outside piston (A): 46.4 mm · Ø piston pin (B): 12 mm · Compression height (C): 25.9 mm · Curvature (D): 2.4 mm · Total piston height (E): 52.8 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Piston weight: 101 g
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Manufacturer: Malossi · Material: Gray cast iron · Surface: sandblasted · Nominal diameter: 46.5 mm · Displacement: 73 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Ø cylinder neck: 50 mm · Ø Outlet outside: 22.4 mm · Ø outlet inside: 18.1 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Hole pattern [mm]: 55 x 34 · Decompressor: Yes · Camouflaged: No · Area of application: Tuning
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Collection only possible with online purchase and appointment.
