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
| Manufacturer | Malossi |
| Material | Gray cast iron |
| Surface | sandblasted |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Ø piston pin (B) | 12 mm |
| Nominal diameter | 46.5 mm |
| Outlet type | clamped |
| Number of fixing points | 3 pcs |
| Area of application | Tuning |
| Decompressor | Yes |
| Camouflaged | No |
Suitable for the following models
| Piaggio | Ciao - Ciao, Ciao, Ciao, Ciao Si Bravo/Superbravo Boxer Grillo |
Accessories & related products
Dell'Orto 19 mm PHBG CS carburetor hand choke
Manufacturer: Dell'Orto · Material: Aluminum · Area of application: Racing · Area of application: Tuning · Carburetor type: PHBG CS · Nominal diameter: 19 mm · Ø Internal connection: 24 mm · Ø without reducing sleeve: 26 mm · Ø Inside entrance: 19 mm · Total length: 82 mm · Ø Output inside: 19 mm · Ø Air filter connection: 32 mm · Ø Air filter connection: 60 mm · Height: 124 mm · Air filter connection thread: MF32x1.25 (fine pitch thread) · Ø fuel hose connection: 5.4 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: Yes · Vacuum connection: Yes · Width: 70 mm · Choke control: Hand choke · Choke nozzle size: 60 · Nozzle thread: M5 · Mounting type: Plug connection clamped · Camouflaged: No · Nozzle size: 75 · Size of secondary nozzle: 45 · Color: black
134,00 EUR
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Material: Steel · Surface: burnished · Total length: 130 mm · Width across flats SW: 10 mm · Width across flats SW: 17 mm · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Number of components: 7 pcs · Area of application: (Dis)assembly tool
22,20 EUR
Malossi piston 46.5 mm (12 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · 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 · Nominal diameter: 46.5 mm · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Weight: 101 g
98,30 EUR
Polini Speed Engine electronic ignition housing | Piaggio Ciao, SI, Bravo, Boxer
Stock number: 6202 · Manufacturer: Polini · Material: Aluminum · Surface: sandblasted · Crankshaft stroke: 43 mm · Ignition type: Electronic · Total length: 215 mm · Height: 104 mm · Width: 175 mm · Color: silver
239,80 EUR
Malossi 46.5 mm cylinder kit incl. head 12 mm KoBo | Piaggio SI, Bravo, Grillo
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
201,10 EUR
Not in stock
NGK B7ES spark plug long thread
Manufacturer: NGK · Candle designation: B7ES · Candle thread type: long · Thread type: MF14x1.25 (fine pitch thread) · Spark plug socket: M4 · Spark plug socket: SAE · Suppressed: No · Width across flats SW: 21 mm · Area of application: Performance · Area of application: Racing · Area of application: Tuning
7,25 EUR
swiing® ingenious needle roller bearing 12/15/14.2 original silver cage
Bearing cage: Silver cage · Width: 14.2 mm · Manufacturer: swiing® ingenious parts · Bearing type: Needle roller and cage assembly · Ø outside: 15 mm · Ø inside: 12 mm · Dimension needle bearing: 12/15 x 14.2 · Alternative version of the Pony Spare part no.: A4222 · Alternative version of Sachs spare part no.: 0232 157 001 · Tomos spare part no.: 035548
13,30 EUR
swiing® ingenious 19 mm PHBG intake manifold Speed Engine (Version 2.0) | Piaggio Ciao, SI, Bravo
Manufacturer: swiing® ingenious parts · Material: Aluminum · Surface: anodized · Area of application: Tuning · Ø inside: 19 mm · Ø External connection: 24 mm · Number of fixing points: 2 pcs · Hole spacing inlet: 36 mm · Mounting type: Screws · Color: graphite colors
33,40 EUR
GPO stator electronic ignition with light (three outputs) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: GPO · Ø inside: 29.5 mm · Ø outside: 105 mm · Number of cables: 6 pcs · Tension: 12 V · Performance: 90 W · Cable length: 100 mm · Cable length: 400 mm · Number of fixing points: 3 pcs · Hole spacing: 34.5 mm · Piaggio spare part no.: 219965
134,00 EUR
swiing® ingenious stud bolt M7x120 / Ø 7.3 shank - 10.9 strength
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: blue galvanized · Thread type: M7x1 (standard thread) · Diameter: 7.3 mm · Total length: 120 mm · Strength class: 10.9 · Thread length: 20 mm · Thread length: 30 mm
5,45 EUR
Moped fans like you also bought:
Dell'Orto 16/16 SHA carburetor hand choke
Manufacturer: Dell'Orto · Material: Aluminum · Carburetor type: SHA (type 4) · Color: black · Nominal diameter: 16 mm · Ø without reducing sleeve: 21 mm · Ø Inside entrance: 16 mm · Ø Internal connection: 19 mm · Ø Output inside: 16 mm · Ø Air filter connection: 56 mm · Ø Air filter connection: 58.5 mm · Ø fuel hose connection: 5.1 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Mounting type: Plug connection clamped · Width: 72 mm · Vacuum connection: No · Total length: 82 mm · Choke control: Hand choke · Nozzle thread: M5 · Camouflaged: No · Nozzle size: 82 · Height: 111 mm · Area of application: Tuning
78,10 EUR
SITO Plus exhaust Ø 24 mm | Piaggio Ciao, Bravo
Manufacturer: SITO · Material: Steel · Surface: varnished · Color: black · Ø Silencer: 70 mm · Ø Internal connection: 22 mm · Ø Flame tube outside: 24 mm · Exhaust type: Cylindrical · Ø outside: 14 mm · Mounting type: Welded lug · Total length: 690 mm · Flame tube attachment: Plug connection clamped · Number of fixing points: 1 pcs
83,70 EUR
Malossi cylinder head for 44 - 47 mm cylinder kit | Piaggio Ciao, Bravo 1, Boxer
Manufacturer: Malossi · Material: Aluminum · Surface: sandblasted · Area of application: Racing · Ø cylinder: 44 - 47 mm · Total length: 122 mm · Number of fixing points: 3 pcs · Candle thread: long · Height: 60 mm · Width: 87 mm · Hole pattern [mm]: 35 x 55 · Decompressor: Yes · Camouflaged: No
89,30 EUR
Malossi 46.5 mm cylinder kit without head 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Material: Gray cast iron · Surface: sandblasted · Area of application: Tuning · Displacement: 73 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Nominal diameter: 46.5 mm · Ø cylinder neck: 50 mm · Ø Outlet outside: 22.4 mm · Number of fixing points: 3 pcs · Ø outlet inside: 18.1 mm · Outlet type: clamped · Hole pattern [mm]: 55 x 34 · Decompressor: Yes · Camouflaged: No
162,00 EUR
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 spare part no.: 103133
11,10 EUR
swiing® revival condenser with cable | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: swiing® revival parts · Capacity: 0.28 µF · Mounting type: Tab for screwing · Connection type: Cable for screwing · Ø mounting hole: 4.4 mm · Ø outside: 18 mm · Height: 26 mm · Area of application: Original · Area of application: Standard · Piaggio spare part no.: 102939
13,30 EUR
Mazzucchelli crankshaft "Racing" 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Mazzucchelli · Weight: 705 g · Material: Steel · Cheek type: standard · Thread type: M8x1.25 (standard thread) · Ø coupling pin / vario pin: 12 mm · Crankshaft stroke: 43 mm · Connecting rod length center-center: 87 mm · Total length crankpin ignition side: 90 mm · Total length crankpin ignition side: 106 mm · Ø crank webs: 69.7 mm · Thread length: 16 mm · Ø Connecting rod eye: 15 mm · Bearing seat right: 15 mm · Ø piston pin (B): 12 mm · Ø Bearing seat (ignition side): 15 mm · Dimension needle bearing: 12 / 15 x 14.7 mm (axe 12) · Wide crank webs: 33 mm · Area of application: Racing · Length 1st paragraph: 21 mm · Length 2nd paragraph: 44 mm · Length 3rd paragraph: 63.5 mm · Ø 1st step (on the coupling side): 15 mm · Ø 2nd shoulder (on the clutch side): 14.4 mm · Ø 3rd step (on the clutch side): 12 mm · Inlet control time: 139 ° · Control time before O.T: 81 ° · Control time according to O.T: 58 ° · Number of gears: 1 pcs
167,60 EUR
swiing® revival stud bolt set M7x120 mm cylinder | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: swiing® revival parts · Material: Steel · Surface: blue galvanized · Thread type: M7x1 (standard thread) · Drive: External hexagon · Diameter: 6.2 mm · Total length: 120 mm · Strength class: 8 · Strength class: 8.8 · Thread length: 25 mm · Width across flats SW: 11 mm
13,00 EUR
Collection only possible with online purchase and appointment.
