Decompression valve suitable for Malossi cylinder heads on your Piaggio Ciao, Si, Bravo and Boxer moped / moped.
This decompression valve was originally installed on the BIG DEPS cylinder head, but is now also used on the new Malossi heads with curved fins (market launch 2021).
Total length: 51.7 mm
Ø stem: 4.45 mm
Ø undercut: 3.5 mm
Ø head: 6.8 mm
Note: This decorative valve is intended exclusively for Malossi cylinder heads and does not fit original cylinder heads or those from other manufacturers. It is also not suitable for older Malossi cylinder covers with straight fins from the Ciao model or for the Piaggio Si heads that are still available for sale.
The remaining parts required to complete the valve must be taken from the original valve (see accessories).
You can find complete racing kits, the matching pipes for the valve and other parts in the accessories section.
Quality product from the Italian manufacturer Malossi.
| Manufacturer | Malossi |
| Material | Steel |
| Area of application | Tuning |
| Ø outside | 4.45 mm |
| Total length | 51.7 mm |
| Ø External head | 6.8 mm |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
Accessories & related products
Malossi cylinder head for 41 - 43 mm cylinder | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Ø cylinder: 41 - 43 mm · Total length: 122 mm · Width: 87 mm · Height: 60 mm · Hole pattern [mm]: 35 x 55 · Candle thread: long · Number of fixing points: 3 pcs · Area of application: Racing · Decompressor: Yes
EUR 83.60
Malossi cylinder head for 44 - 47 mm cylinder | Piaggio Ciao, Bravo 1, Boxer
Manufacturer: Malossi · Width: 87 mm · Height: 60 mm · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Area of application: Racing · Ø cylinder: 44 - 47 mm · Total length: 122 mm · Number of fixing points: 3 pcs · Candle thread: long · Hole pattern [mm]: 35 x 55 · Decompressor: Yes
EUR 91.70
Malossi 43 mm cylinder kit incl. head 10 mm KoBo new version | Piaggio Ciao, Bravo, Boxer
Manufacturer: Malossi · Material: Aluminum · Material: Gray cast iron · Camouflaged: No · Displacement: 63 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 43 mm · Ø piston pin (B): 10 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Area of application: Tuning
EUR 229.30
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
EUR 229.30
Not in stock
Malossi 46.5 mm cylinder kit incl. head 10 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 46.5 mm · Manufacturer: Malossi · Material: Gray cast iron · Surface: sandblasted · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 10 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Decompressor: Yes · Camouflaged: No · Area of application: Tuning
EUR 194.90
Malossi 46.5 mm cylinder kit incl. head 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
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
EUR 206.40
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) · Total length: 46 mm · Nominal diameter: 13 mm · Width: 60 mm · Nozzle thread: M5x0.8 (standard thread) · Height: 96 mm · 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 · Ø fuel hose connection: 6 mm · Mounting type: Plug connection clamped · Choke control: Hand choke · Area of application: Tuning
EUR 76.80
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 · Component group Carburetor: Spraying · Quantity: 10 pcs · Carburetor type: PHBG · Carburetor type: SHA · Carburetor type: SHA (Piaggio) · Total length: 8 mm · Nozzle type: Main nozzle · 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 · Drive: Slot
EUR 24.00
Hot
Malossi air filter | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Camouflaged: No · Material: Plastic · Ø outside: 53.2 mm · Filter type: Foam · Total length: 31.2 mm · Color: black · Width: 95 mm · Height: 88.7 mm · Ø Internal connection: 51 mm · Mounting type: Plug connection clamped · Area of application: Tuning
EUR 22.80
Malossi 43 mm cylinder kit 10 mm KoBo new version | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Material: Gray cast iron · Camouflaged: No · Surface: sandblasted · Displacement: 63 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 43 mm · Ø cylinder neck: 45.6 mm · Ø Outlet outside: 22.5 mm · Ø outlet inside: 18.3 mm · Hole pattern [mm]: 55 x 34 · Ø piston pin (B): 10 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Area of application: Tuning · Decompressor: Yes
EUR 166.20
Malossi cylinder head for 41 - 43 mm cylinder | Piaggio SI, Bravo
Manufacturer: Malossi · Width: 94 mm · Height: 52 mm · Camouflaged: No · Material: Aluminum · Area of application: Racing · Ø cylinder: 41 - 43 mm · Total length: 134 mm · Number of fixing points: 3 pcs · Candle thread: short · Hole pattern [mm]: 35 x 55 · Decompressor: Yes
EUR 80.20
Dell'Orto 13/13 SHA carburetor | Piaggio SI, Boss, Grillo
Manufacturer: Dell'Orto · Material: Aluminum · Camouflaged: No · Component group Carburetor: Carburetor complete · Area of application: Tuning · Color: black · Total length: 55 mm · Carburetor type: SHA (Piaggio) · Width: 60 mm · Height: 118 mm · Nozzle thread: M5x0.8 (standard thread) · Mounting type: Plug connection clamped · Nominal diameter: 13 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 · Ø fuel hose connection: 5.2 mm · Ø fuel hose connection: 6 mm · Choke control: Hand choke · Nozzle size: 66
EUR 80.20
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
