Revised 2021 version of one of the best available cylinder kits for Piaggio mopeds / mopeds.
This is the version with 12 mm piston pin.
This cast iron cylinder offers a very good increase in performance over the entire speed range and makes it one of the most popular 63 cc racing cylinders for Piaggio.
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 skirt significantly reduce the risk of piston jamming and make the cylinder extremely durable.
With the reworking, the triangular shape of the overrunner was adapted to a longitudinal shape. As a result, the cylinder fits much better on racing gear such as the Polini Speed Engine, but less well on the original gear. Fortunately, there is enough sealing surface available so that you can bring the channels back into a triangular shape on the cylinder if necessary.
In addition to installing a larger cylinder, we recommend that you always adjust the carburetor and exhaust accordingly. Ideally, you should also modify the intake and the overflow ducts or use a racing case.
Because the combustion chamber is optimally matched to the cylinder, we recommend using the Malossi cylinder head. Alternatively, the cylinder can also be operated with the original head.
Note: Please note the installation direction when assembling. The piston is inserted with the arrow pointing towards the outlet on the exhaust side.
| Manufacturer | Malossi |
| Material | Gray cast iron |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 63 ccm |
| Nominal diameter | 43 mm |
| Crankshaft stroke | 43 mm |
| Ø piston pin (B) | 12 mm |
| Ø cylinder neck | 45.6 mm |
| Ø Outlet outside | 22.4 mm |
| Ø outlet inside | 18.3 mm |
| Outlet type | clamped |
| Hole pattern [mm] | 55 x 34 |
| Area of application | Tuning |
| Decompressor | Yes |
| Number of fixing points | 3 pcs |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
Accessories & related products
Hot 
SITO Plus exhaust Ø 24 mm | Piaggio Ciao, Bravo
Manufacturer: SITO · Material: Steel · Surface: varnished · Color: black · Ø outside: 14 mm · Ø Internal connection: 22 mm · Ø Silencer: 70 mm · Total length: 690 mm · Mounting type: Welded lug · Number of fixing points: 1 pcs · Ø Flame tube outside: 24 mm · Exhaust type: Cylindrical · Flame tube attachment: Plug connection clamped
87,40 EUR
SITO Plus exhaust Ø 24 mm | Piaggio SI, Grillo
Manufacturer: SITO · Material: Steel · Surface: varnished · Color: black · Ø outside: 14 mm · Ø Silencer: 70 mm · Ø Internal connection: 22.3 mm · Ø Flame tube outside: 25 mm · Exhaust type: Cylindrical · Total length: 720 mm · Mounting type: Welded lug · Flame tube attachment: Plug connection clamped · Number of fixing points: 1 pcs
93,20 EUR
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Material: Steel · Surface: burnished · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Total length: 130 mm · Area of application: (Dis)assembly tool · Number of components: 7 pcs · Width across flats: 10 mm · Width across flats: 17 mm
23,20 EUR
Olympia cylinder head for 41 - 43 mm cylinder | Piaggio Ciao
Manufacturer: Olympia · Material: Aluminum · Area of application: Racing · Area of application: Tuning · Width: 78 mm · Ø cylinder: 41 - 43 mm · Height: 60 mm · Total length: 120 mm · Candle thread: short · Number of fixing points: 3 pcs
30,20 EUR
Malossi cylinder head for 41 - 43 mm cylinder kit | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Ø cylinder: 41 - 43 mm · Width: 87 mm · Height: 60 mm · Total length: 122 mm · Candle thread: long · Number of fixing points: 3 pcs · Hole pattern [mm]: 35 x 55 · Decompressor: Yes · Area of application: Racing
85,10 EUR
Malossi piston 43 mm (12 mm KoBo) old version | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 43 mm · Manufacturer: Malossi · Ø outside piston (A): 42.92 mm · Compression height (C): 26.1 mm · Curvature (D): 4.7 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 · Ø piston pin (B): 12 mm · Weight piston kit: 90 g
87,40 EUR
Polini Speed Engine engine case breaker ignition | Piaggio Ciao, SI, Bravo, Boxer
Material: Aluminum · Manufacturer: Polini · Surface: sandblasted · Stock number: 6202 · Crankshaft stroke: 43 mm · Color: silver · Ignition type: Breaker · Height: 104 mm · Total length: 215 mm · Width: 175 mm
244,90 EUR
Malossi tuning set 43 mm | Piaggio Ciao, Bravo, Boxer
Nominal diameter: 65 mm · Manufacturer: Dell'Orto · Manufacturer: Malossi · Manufacturer: NGK · Manufacturer: SITO · Manufacturer: swiing® revival parts · Displacement: 65 ccm · Ø piston pin (B): 10 mm · Ø piston pin (B): 12 mm · Camouflaged: No · Area of application: Tuning
414,10 EUR
Malossi cylinder head for 41 - 43 mm cylinder kit | Piaggio SI, Bravo
Width: 94 mm · Manufacturer: Malossi · Material: Aluminum · Camouflaged: No · Area of application: Racing · Ø cylinder: 41 - 43 mm · Total length: 134 mm · Hole pattern [mm]: 35 x 55 · Height: 52 mm · Candle thread: short · Number of fixing points: 3 pcs · Decompressor: Yes
81,60 EUR
Athena crankshaft "Racing" 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Athena · Area of application: Racing · Cheek type: standard · Ø coupling pin / vario pin: 12 mm · Crankshaft stroke: 43 mm · Connecting rod length center-center: 85 mm · Total length crankpin ignition side: 91.6 mm · Thread type: M8x1.25 (standard thread) · Ø Connecting rod eye: 15 mm · Ø piston pin (B): 12 mm · Ø Bearing seat (clutch side): 15 mm · Ø Bearing seat (ignition side): 15 mm · Dimension needle bearing: 12 / 15 x 14.7 mm (axe 12) · Wide crank webs: 33 mm · Length 1st paragraph: 21.9 mm · Length 2nd paragraph: 43.2 mm · Length 3rd paragraph: 63.5 mm · Number of gears: 1 pcs
183,10 EUR
Dell'Orto 13/13 SHA carburetor & racing air filter set | Piaggio Ciao PX, C24
Manufacturer: Dell'Orto · Manufacturer: Malossi · Component group Carburetor: Carburetor complete · Carburetor type: SHA (Piaggio) · Nominal diameter: 13 mm · Total length: 46 mm · Height: 96 mm · Nozzle thread: M5x0.8 (standard thread) · Ø without reducing sleeve: 18 mm · Nozzle size: 66 · Ø Inside entrance: 13 mm · Ø Output inside: 13 mm · Ø Air filter connection: 50.8 mm · Ø Internal connection: 16 mm · Ø fuel hose connection: 6 mm · Mounting type: Plug connection clamped · Choke control: Hand choke · Area of application: Tuning · Width: 60 mm
78,10 EUR
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
5,70 EUR
Explore categories from Cylinder
Moped fans also bought
Hot
swiing® revival nozzle set M5 (50 - 70) Dell'Orto SHA, PHBG
Manufacturer: swiing® revival parts · Material: Brass · Quantity: 10 pcs · Component group Carburetor: Spraying · Carburetor type: PHBG · Carburetor type: SHA · Carburetor type: SHA (Piaggio) · Nozzle type: Main nozzle · Drive: Slot · Total length: 8 mm · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 50 · Nozzle size: 52 · Nozzle size: 55 · Nozzle size: 58 · Nozzle size: 60 · Nozzle size: 62 · Nozzle size: 64 · Nozzle size: 66 · Nozzle size: 68 · Nozzle size: 70
24,40 EUR
Hot
SITO Plus exhaust Ø 24 mm | Piaggio Ciao, Bravo
Manufacturer: SITO · Material: Steel · Surface: varnished · Color: black · Ø outside: 14 mm · Ø Internal connection: 22 mm · Ø Silencer: 70 mm · Total length: 690 mm · Mounting type: Welded lug · Number of fixing points: 1 pcs · Ø Flame tube outside: 24 mm · Exhaust type: Cylindrical · Flame tube attachment: Plug connection clamped
87,40 EUR
Hot
Dell'Orto 13/13 SHA carburetor hand choke | Piaggio Ciao PX / C24, Bravo, SUPERbravo
Manufacturer: Dell'Orto · Material: Aluminum · Camouflaged: No · Component group Carburetor: Carburetor complete · Color: black · Carburetor type: SHA (Piaggio) · Nominal diameter: 13 mm · Ø Internal connection: 16 mm · Ø without reducing sleeve: 18 mm · Width: 60 mm · Ø Inside entrance: 13 mm · Total length: 46 mm · Height: 96 mm · Mounting type: Plug connection clamped · Ø Output inside: 13 mm · Ø Air filter connection: 50.8 mm · Ø fuel hose connection: 5.2 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 66 · Area of application: Tuning
69,90 EUR
Hot
Malossi air filter | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Camouflaged: No · Material: Plastic · Color: black · Filter type: Foam · Ø outside: 53.2 mm · Ø Internal connection: 51 mm · Width: 95 mm · Total length: 31.2 mm · Height: 88.7 mm · Mounting type: Plug connection clamped · Area of application: Tuning
23,20 EUR
SITO Plus exhaust Ø 24 mm | Piaggio SI, Grillo
Manufacturer: SITO · Material: Steel · Surface: varnished · Color: black · Ø outside: 14 mm · Ø Silencer: 70 mm · Ø Internal connection: 22.3 mm · Ø Flame tube outside: 25 mm · Exhaust type: Cylindrical · Total length: 720 mm · Mounting type: Welded lug · Flame tube attachment: Plug connection clamped · Number of fixing points: 1 pcs
93,20 EUR
Malossi cylinder head for 41 - 43 mm cylinder kit | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Ø cylinder: 41 - 43 mm · Width: 87 mm · Height: 60 mm · Total length: 122 mm · Candle thread: long · Number of fixing points: 3 pcs · Hole pattern [mm]: 35 x 55 · Decompressor: Yes · Area of application: Racing
85,10 EUR
Malossi 43 mm cylinder kit incl. head 12 mm KoBo new version | Piaggio Ciao, Bravo, Boxer
Material: Gray cast iron · Manufacturer: Malossi · Surface: sandblasted · Nominal diameter: 43 mm · Displacement: 63 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Decompressor: Yes · Camouflaged: No · Area of application: Tuning
233,30 EUR
Not in stock
NGK B7ES spark plug long thread
Manufacturer: NGK · Candle designation: B7ES · Candle thread type: long · Spark plug socket: M4 · Spark plug socket: SAE · Thread type: MF14x1.25 (fine pitch thread) · Width across flats: 21 mm · Suppressed: No · Area of application: Performance · Area of application: Racing · Area of application: Tuning
7,60 EUR
Malossi tuning set 43 mm | Piaggio Ciao, Bravo, Boxer
Nominal diameter: 65 mm · Manufacturer: Dell'Orto · Manufacturer: Malossi · Manufacturer: NGK · Manufacturer: SITO · Manufacturer: swiing® revival parts · Displacement: 65 ccm · Ø piston pin (B): 10 mm · Ø piston pin (B): 12 mm · Camouflaged: No · Area of application: Tuning
414,10 EUR
Dell'Orto 13/13 SHA carburetor | Piaggio SI, Boss, Grillo
Material: Aluminum · Manufacturer: Dell'Orto · Nominal diameter: 13 mm · Component group Carburetor: Carburetor complete · Carburetor type: SHA (Piaggio) · Color: black · Nozzle thread: M5x0.8 (standard thread) · Ø without reducing sleeve: 18 mm · Nozzle size: 66 · Ø Inside entrance: 13 mm · Ø Internal connection: 16 mm · Ø Output inside: 13 mm · Ø Air filter connection: 50.8 mm · Height: 118 mm · Ø fuel hose connection: 5.2 mm · Ø fuel hose connection: 6 mm · Total length: 55 mm · Mounting type: Plug connection clamped · Width: 60 mm · Choke control: Hand choke · Camouflaged: No · Area of application: Tuning
81,60 EUR
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
