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.
| Nominal diameter | 43 mm |
| Manufacturer | Malossi |
| Material | Gray cast iron |
| Area of application | Tuning |
| Surface | sandblasted |
| Displacement | 63 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 45.6 mm |
| Ø Outlet outside | 22.4 mm |
| Ø outlet inside | 18.3 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | clamped |
| Number of fixing points | 3 pcs |
| Hole pattern [mm] | 55 x 34 |
| Decompressor | Yes |
| Camouflaged | No |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
Ratings
Accessories & related products
SITO Plus exhaust Ø 24 mm | Piaggio Ciao, Bravo
Number of fixing points: 1 pcs · Manufacturer: SITO · Surface: varnished · Color: black · Material: Steel · Total length: 690 mm · Ø Silencer: 70 mm · Mounting type: Welded lug · Ø Flame tube outside: 24 mm · Exhaust type: Cylindrical · Ø outside: 14 mm · Ø Internal connection: 22 mm · Flame tube attachment: Plug connection clamped
CHF 74.90
SITO Plus exhaust Ø 24 mm | Piaggio SI, Grillo
Manufacturer: SITO · Material: Steel · Surface: varnished · Ø outside: 14 mm · Total length: 720 mm · Color: black · Ø Silencer: 70 mm · Ø Internal connection: 22.3 mm · Ø Flame tube outside: 25 mm · Exhaust type: Cylindrical · Mounting type: Welded lug · Number of fixing points: 1 pcs · Flame tube attachment: Plug connection clamped
CHF 79.90
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Area of application: (Dis)assembly tool · Material: Steel · Surface: burnished · Number of components: 7 pcs · Total length: 130 mm · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Width across flats: 10 mm · Width across flats: 17 mm
CHF 19.90
Olympia cylinder head for 41 - 43 mm cylinder kit | Piaggio Ciao
Manufacturer: Olympia · Material: Aluminum · Ø cylinder: 41 - 43 mm · Total length: 120 mm · Width: 78 mm · Height: 60 mm · Area of application: Racing · Area of application: Tuning · Candle thread: short · Number of fixing points: 3 pcs
CHF 25.90
Malossi cylinder head for 41 - 43 mm cylinder kit | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Total length: 122 mm · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Ø cylinder: 41 - 43 mm · Candle thread: long · Number of fixing points: 3 pcs · Hole pattern [mm]: 35 x 55 · Decompressor: Yes · Width: 87 mm · Height: 60 mm · Area of application: Racing
CHF 72.90
Malossi piston 43 mm (12 mm KoBo) old version | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Nominal diameter: 43 mm · Ø outside piston (A): 42.92 mm · Ø piston pin (B): 12 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 · Weight piston kit: 90 g
CHF 74.90
Polini Speed Engine engine case breaker ignition | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Aluminum · Surface: sandblasted · Color: silver · Crankshaft stroke: 43 mm · Ignition type: Breaker · Stock number: 6202 · Total length: 215 mm · Width: 175 mm · Height: 104 mm
CHF 209.90
Malossi tuning set 43 mm | Piaggio Ciao, Bravo, Boxer
Manufacturer: Dell'Orto · Manufacturer: Malossi · Manufacturer: NGK · Manufacturer: SITO · Manufacturer: swiing® revival parts · Camouflaged: No · Displacement: 65 ccm · Nominal diameter: 65 mm · Ø piston pin (B): 10 mm · Ø piston pin (B): 12 mm · Area of application: Tuning
CHF 354.90
Not in stock
Malossi cylinder head for 41 - 43 mm cylinder kit | Piaggio SI, Bravo
Manufacturer: Malossi · Material: Aluminum · Ø cylinder: 41 - 43 mm · Camouflaged: No · Number of fixing points: 3 pcs · Hole pattern [mm]: 35 x 55 · Candle thread: short · Decompressor: Yes · Total length: 134 mm · Width: 94 mm · Height: 52 mm · Area of application: Racing
CHF 69.90
Athena crankshaft "Racing" 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Athena · Cheek type: standard · Crankshaft stroke: 43 mm · Ø coupling pin / vario pin: 12 mm · Connecting rod length center-center: 85 mm · Total length crankpin ignition side: 91.6 mm · Ø piston pin (B): 12 mm · Ø Connecting rod eye: 15 mm · Ø Bearing seat (clutch side): 15 mm · Ø Bearing seat (ignition side): 15 mm · Thread type: M8x1.25 (standard thread) · 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 · Area of application: Racing
CHF 156.90
Dell'Orto 13/13 SHA carburetor & racing air filter set | Piaggio Ciao PX, C24
Total length: 46 mm · Width: 60 mm · Height: 96 mm · Manufacturer: Dell'Orto · Manufacturer: Malossi · Mounting type: Plug connection clamped · Component group Carburetor: Carburetor complete · Choke control: Hand choke · Carburetor type: SHA (Piaggio) · Nominal diameter: 13 mm · Ø fuel hose connection: 6 mm · Ø without reducing sleeve: 18 mm · Ø Inside entrance: 13 mm · Ø Internal connection: 16 mm · Ø Output inside: 13 mm · Ø Air filter connection: 50.8 mm · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 66 · Area of application: Tuning
CHF 66.90
Not in stock
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
CHF 4.90
CHF 3.50
Explore categories from Cylinder
Moped fans also bought
Hot 
swiing® revival nozzle set M5 (50 - 70) Dell'Orto SHA, PHBG
Total length: 8 mm · Manufacturer: swiing® revival parts · Quantity: 10 pcs · Component group Carburetor: Spraying · Material: Brass · Carburetor type: PHBG · Carburetor type: SHA · Carburetor type: SHA (Piaggio) · Nozzle type: Main nozzle · Drive: Slot · 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 · Nozzle thread: M5x0.8 (standard thread)
CHF 20.90
SITO Plus exhaust Ø 24 mm | Piaggio Ciao, Bravo
Number of fixing points: 1 pcs · Manufacturer: SITO · Surface: varnished · Color: black · Material: Steel · Total length: 690 mm · Ø Silencer: 70 mm · Mounting type: Welded lug · Ø Flame tube outside: 24 mm · Exhaust type: Cylindrical · Ø outside: 14 mm · Ø Internal connection: 22 mm · Flame tube attachment: Plug connection clamped
CHF 74.90
Dell'Orto 13/13 SHA carburetor hand choke | Piaggio Ciao PX / C24, Bravo, SUPERbravo
Material: Aluminum · Width: 60 mm · Height: 96 mm · Manufacturer: Dell'Orto · Mounting type: Plug connection clamped · Camouflaged: No · Component group Carburetor: Carburetor complete · Choke control: Hand choke · Carburetor type: SHA (Piaggio) · Color: black · Nominal diameter: 13 mm · Ø fuel hose connection: 5.2 mm · Ø fuel hose connection: 6 mm · Ø without reducing sleeve: 18 mm · Ø Inside entrance: 13 mm · Ø Internal connection: 16 mm · Ø Output inside: 13 mm · Total length: 46 mm · Ø Air filter connection: 50.8 mm · Mixed oil connection: No · Vacuum connection: No · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 66 · Area of application: Tuning
CHF 59.90
Not in stock
Malossi air filter | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Camouflaged: No · Material: Plastic · Filter type: Foam · Color: black · Ø outside: 53.2 mm · Total length: 31.2 mm · Ø Internal connection: 51 mm · Width: 95 mm · Height: 88.7 mm · Mounting type: Plug connection clamped · Area of application: Tuning
CHF 19.90
Malossi cylinder head for 41 - 43 mm cylinder kit | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Total length: 122 mm · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Ø cylinder: 41 - 43 mm · Candle thread: long · Number of fixing points: 3 pcs · Hole pattern [mm]: 35 x 55 · Decompressor: Yes · Width: 87 mm · Height: 60 mm · Area of application: Racing
CHF 72.90
Malossi cylinder head for 41 - 43 mm cylinder kit | Piaggio SI, Bravo
Manufacturer: Malossi · Material: Aluminum · Ø cylinder: 41 - 43 mm · Camouflaged: No · Number of fixing points: 3 pcs · Hole pattern [mm]: 35 x 55 · Candle thread: short · Decompressor: Yes · Total length: 134 mm · Width: 94 mm · Height: 52 mm · Area of application: Racing
CHF 69.90
Malossi 43 mm cylinder kit incl. head 12 mm KoBo new version | Piaggio Ciao, Bravo, Boxer
Nominal diameter: 43 mm · Manufacturer: Malossi · Material: Gray cast iron · Surface: sandblasted · 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
CHF 199.90
NGK B7ES spark plug long thread
Manufacturer: NGK · Candle designation: B7ES · Candle thread type: long · Thread type: MF14x1.25 (fine pitch thread) · Width across flats: 21 mm · Spark plug socket: M4 · Spark plug socket: SAE · Suppressed: No · Area of application: Performance · Area of application: Racing · Area of application: Tuning
CHF 6.50
Malossi tuning set 43 mm | Piaggio Ciao, Bravo, Boxer
Manufacturer: Dell'Orto · Manufacturer: Malossi · Manufacturer: NGK · Manufacturer: SITO · Manufacturer: swiing® revival parts · Camouflaged: No · Displacement: 65 ccm · Nominal diameter: 65 mm · Ø piston pin (B): 10 mm · Ø piston pin (B): 12 mm · Area of application: Tuning
CHF 354.90
Not in stock
Dell'Orto 13/13 SHA carburetor | Piaggio SI, Boss, Grillo
Manufacturer: Dell'Orto · Camouflaged: No · Component group Carburetor: Carburetor complete · Material: Aluminum · Color: black · Carburetor type: SHA (Piaggio) · Nominal diameter: 13 mm · Ø Internal connection: 16 mm · Ø without reducing sleeve: 18 mm · Ø Inside entrance: 13 mm · 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 · Choke control: Hand choke · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 66 · Mounting type: Plug connection clamped · Total length: 55 mm · Width: 60 mm · Height: 118 mm · Area of application: Tuning
CHF 69.90
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
