Revised 2021 version of one of the best available cylinders including cylinder head for Piaggio mopeds / mopeds with 12 mm piston pin.
This cast iron cylinder offers a very good power increase over the entire speed range and makes it one of the most popular 73.5 cc racing cylinder for Piaggio engines.
The workmanship is very clean and the matching of the piston windows to the overflow channels and boost parts is 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 cylinder head with its small combustion chamber and large flat sealing surface ensures good compression. Thanks to the additional cooling fins on the sides, this racing cylinder head can dissipate the resulting heat even better and thus protects the racing set from overheating.
Note: Before initial installation, the deco pin must be hammered into the valve seat. To do this, place the cylinder head on a stable surface with the valve ribs facing downwards and insert the pin. The deco pin must then be brought into the correct fit using a medium-strength punch and a slotted screwdriver or punch (Ø 4-6 mm). This method is unusual, but recommended by Malossi. The remaining parts required to complete the valve must be taken from the original valve.
This cylinder kit requires long-threaded spark plugs.
Attention: In order to install this cylinder on a Piaggio case, the case must be milled or hollowed out.
Alternatively, a racing case with a larger diameter can be used for the cylinder mount.
You can find other add-on parts such as long-threaded spark plugs 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
Hole pattern [mm]: 35 x 55 · Manufacturer: Malossi · Material: Aluminum · Surface: sandblasted · Ø cylinder: 44 - 47 mm · Camouflaged: No · Number of fixing points: 3 pcs · Candle thread: long · Decompressor: Yes · Total length: 122 mm · Width: 87 mm · Height: 60 mm · Area of application: Racing
Details
| Nominal diameter | 46.5 mm |
| Manufacturer | Malossi |
| 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 |
| Area of application | Tuning |
Suitable for the following models
| Piaggio | Ciao - P, SC, PX, C24 Si Bravo / Super Bravo Boxer Grillo |
Accessories & related products
Dell'Orto 19 mm PHBG CS carburetor hand choke
Manufacturer: Dell'Orto · Material: Aluminum · Camouflaged: No · Component group Carburetor: Carburetor complete · Carburetor type: PHBG CS · Color: black · Nominal diameter: 19 mm · Width: 70 mm · Mounting type: Plug connection clamped · Height: 124 mm · Ø without reducing sleeve: 26 mm · Ø Inside entrance: 19 mm · Ø Output inside: 19 mm · Ø Air filter connection: 32 mm · Ø Air filter connection: 60 mm · Air filter connection thread: MF32x1.25 (fine pitch thread) · Ø Internal connection: 24 mm · Total length: 82 mm · Ø fuel hose connection: 5.4 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: Yes · Vacuum connection: Yes · Choke control: Hand choke · Area of application: Racing · Area of application: Tuning · Choke nozzle size: 60 · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 75 · Size of secondary nozzle: 45
CHF 119.90
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Number of components: 7 pcs · Surface: burnished · Material: Steel · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Total length: 130 mm · Width across flats SW: 10 mm · Width across flats SW: 17 mm · Area of application: (Dis)assembly tool
CHF 19.90
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 impact: Internal fuse (IS) · Piston ring mold: Rectangular ring · Piston ring height: 1.5 mm · Piston weight: 101 g
CHF 87.90
Not in stock
Polini Speed Engine electronic ignition housing | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Aluminum · Surface: sandblasted · Crankshaft stroke: 43 mm · Color: silver · Ignition type: Electronic · Height: 104 mm · Total length: 215 mm · Width: 175 mm · Stock number: 6202
CHF 209.90
Malossi 46.5 mm cylinder kit incl. head 12 mm KoBo | Piaggio SI, Bravo, Grillo
Manufacturer: Malossi · Camouflaged: No · Surface: sandblasted · Crankshaft stroke: 43 mm · Displacement: 70 ccm · Nominal diameter: 46.5 mm · Ø piston pin (B): 12 mm · Material: Gray cast iron · Area of application: Tuning · Decompressor: Yes · Number of fixing points: 3 pcs · Outlet type: clamped
CHF 179.90
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) · Suppressed: No · Width across flats SW: 21 mm · Area of application: Performance · Area of application: Racing · Area of application: Tuning
CHF 6.50
swiing® ingenious needle roller bearing 12/15/14.2 original silver cage
Bearing type: Needle roller and cage assembly · Bearing cage: Silver cage · Dimension needle bearing: 12/15 x 14.2 · Ø inside: 12 mm · Ø outside: 15 mm · Manufacturer: swiing® ingenious parts · Width: 14.2 mm · Alternative version of the Pony OEM number: A4222 · Alternative version of the Sachs OEM number: 0232 157 001 · Tomos OEM number: 035548
CHF 11.90
swiing® ingenious 19 mm PHBG intake manifold Speed Engine (Version 2.0) | Piaggio Ciao, SI, Bravo
Manufacturer: swiing® ingenious parts · Material: Aluminum · Surface: anodized · Color: graphite colors · Ø inside: 19 mm · Ø External connection: 24 mm · Mounting type: Screws · Hole spacing inlet: 36 mm · Number of fixing points: 2 pcs · Area of application: Tuning
CHF 29.90
GPO stator electronic ignition with light (three outputs) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: GPO · Tension: 12 V · Performance: 90 W · Number of cables: 6 pcs · Cable length: 100 mm · Cable length: 400 mm · Ø inside: 29.5 mm · Ø outside: 105 mm · Number of fixing points: 3 pcs · Hole spacing: 34.5 mm · Piaggio OEM number: 219965
CHF 119.90
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
Moped fans like you also bought:
EFFE Condenser with cable | Piaggio Ciao, SI, Bravo, Boxer
Ø outside: 18 mm · Ø mounting hole: 4.4 mm · Manufacturer: EFFE · Capacity: 0.26 µF · Area of application: Original · Area of application: Standard · Mounting type: Tab for screwing · Connection type: Cable for screwing · Height: 26 mm · Piaggio OEM number: 102939
CHF 11.90
SITO Plus exhaust Ø 24 mm | Piaggio Ciao, Bravo
Manufacturer: SITO · Material: Steel · Surface: varnished · Color: black · Ø Silencer: 70 mm · Total length: 690 mm · Ø Flame tube outside: 24 mm · Exhaust type: Cylindrical · Ø Internal connection: 22 mm · Ø outside: 14 mm · Flame tube attachment: Plug connection clamped · Mounting type: Welded lug · Number of fixing points: 1 pcs
CHF 74.90
Malossi air filter | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Camouflaged: No · Material: Plastic · Color: black · Filter type: Foam · Total length: 31.2 mm · Height: 88.7 mm · Width: 95 mm · Ø Internal connection: 51 mm · Area of application: Tuning · Ø outside: 53.2 mm · Mounting type: Plug connection clamped
CHF 19.90
Malossi cylinder head for 44 - 47 mm cylinder kit | Piaggio Ciao, Bravo 1, Boxer
Manufacturer: Malossi · Area of application: Racing · Material: Aluminum · Surface: sandblasted · Ø cylinder: 44 - 47 mm · Total length: 122 mm · Width: 87 mm · Height: 60 mm · Number of fixing points: 3 pcs · Candle thread: long · Hole pattern [mm]: 35 x 55 · Decompressor: Yes · Camouflaged: No
CHF 79.90
Not in stock
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 · Surface: sandblasted · Displacement: 73 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 50 mm · Ø Outlet outside: 22.4 mm · Ø outlet inside: 18.1 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 · Area of application: Tuning
CHF 144.90
GPO breaker without cable (version 2.0) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: GPO · Material: Steel · Area of application: Original · Area of application: Standard · Cable available: No · Ø axle: 5 mm · Ø mounting hole: 5 mm · Number of fixing points: 1 pcs · Piaggio OEM number: 103133
CHF 9.90
swiing® revival condenser with cable | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: swiing® revival parts · Capacity: 0.28 µF · Mounting type: Tab for screwing · Ø outside: 18 mm · Connection type: Cable for screwing · Height: 26 mm · Ø mounting hole: 4.4 mm · Area of application: Original · Area of application: Standard · Piaggio OEM number: 102939
CHF 11.90
swiing® revival stud bolt set M7x120 mm cylinder | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Diameter: 6.2 mm · Thread type: M7x1 (standard thread) · Total length: 120 mm · Thread length: 25 mm · Width across flats SW: 11 mm · Strength class: 8 · Strength class: 8.8 · Drive: External hexagon
CHF 11.70
Collection only possible with online purchase and appointment.
