
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.
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
| Manufacturer | Malossi |
| Material | Gray cast iron |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 70 ccm |
| Nominal diameter | 46.5 mm |
| Crankshaft stroke | 43 mm |
| Number of fixing points | 3 pcs |
| Ø piston pin (B) | 12 mm |
| Outlet type | clamped |
| Area of application | Tuning |
| Decompressor | Yes |
| Piaggio | Si Bravo / Super Bravo Grillo |
Accessories & related products
Malossi piston 46.5 mm (12 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 46.5 mm · Manufacturer: Malossi · Ø outside piston (A): 46.4 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) · Ø piston pin (B): 12 mm · Piston ring height: 1.5 mm · Weight piston kit: 101 g
EUR 104.10
swiing® ingenious needle roller bearing 12/15/14.2 original silver cage
Manufacturer: swiing® ingenious parts · Bearing cage: Silver cage · Bearing type: Needle roller and cage assembly · Ø inside: 12 mm · Ø outside: 15 mm · Width: 14.2 mm · Dimension needle bearing: 12/15 x 14.2 · Alternative version of the Pony OEM number: A4222 · Tomos OEM number: 035548 · Alternative version of the Sachs OEM number: 0232 157 001
EUR 14.10
swiing® ingenious stud bolt M7x120 / Ø 7.3 shank - 10.9 strength
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: galvanized (blue) · Diameter: 7.3 mm · Thread type: M7x1 (standard thread) · Total length: 120 mm · Thread length: 20 mm · Thread length: 30 mm · Strength class: 10.9
EUR 5.80
Moped fans also bought
Spotlight round Ø 13 cm chrome / black
Test mark: none · Material: Sheet metal (steel) · Surface: chrome-plated · Surface: varnished · Housing material: Metal · Thread size: M6 · Lens material: Plastic · Color: Chrome · Color: black · Color: transparent · Ø outside: 130 mm · Bulb holder: BA15d · Height: 147 mm · Mounting type: Screws · Number of fixing points: 2 pcs · Speedometer recording: None · Switch included: No · Battery operated: No · Area of application: Standard · Width: 134 mm · Depth: 80 mm
EUR 29.50
swiing® revival nozzle set M5 (70 - 92) Dell'Orto SHA, PHBG
Manufacturer: swiing® revival parts · Material: Brass · Component group Carburetor: Spraying · Carburetor type: PHBG · Carburetor type: SHA · Carburetor type: SHA (Piaggio) · Quantity: 10 pcs · Total length: 8 mm · Nozzle type: Main nozzle · Drive: Slot · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 70 · Nozzle size: 72 · Nozzle size: 75 · Nozzle size: 78 · Nozzle size: 80 · Nozzle size: 82 · Nozzle size: 85 · Nozzle size: 88 · Nozzle size: 90 · Nozzle size: 92
EUR 24.80
swiing® revival gasket outlet | Zündapp Belmondo
Manufacturer: swiing® revival parts · Material: Graphite / Graphite · Ø inside: 25 mm · Place of use: Outlet · Ø outside: 38.3 mm · Total length: 53 mm · Thickness: 1.5 mm · Number of fixing points: 2 pcs · Ø mounting hole: 7.1 mm · Hole spacing: 40 mm
EUR 4.60
Malossi 46.5 mm cylinder kit without head 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 46.5 mm · Manufacturer: Malossi · Material: Gray cast iron · Camouflaged: No · Surface: sandblasted · Crankshaft stroke: 43 mm · Displacement: 73 ccm · Ø cylinder neck: 50 mm · Ø Outlet outside: 22.4 mm · Ø outlet inside: 18.1 mm · Number of fixing points: 3 pcs · Ø piston pin (B): 12 mm · Hole pattern [mm]: 55 x 34 · Outlet type: clamped · Decompressor: Yes · Area of application: Tuning
EUR 171.70












