This cast cylinder, which is supplied with the matching cylinder head, fits Piaggio Si, Bravo 2 and 3 as well as Grillo mopeds / mopeds.
Racing version from Polini. This cylinder is the revised version of the older 43mm cylinder kit from Polini.
Better timing and larger overflow channels make this racing cylinder even more powerful.
Excellent workmanship and durability, combined with an exceptional price-performance ratio make this cylinder one of the most popular on the market.
The piston pin has a diameter of 10 mm.
We can also offer you this cylinder kit without cylinder head, or with 12 mm piston pin diameter.
Quality product from the Italian manufacturer Polini.
Manufacturer: Polini · Ø cylinder: 41 - 43 mm · Area of application: Racing
Hole pattern [mm]: 55 x 34 · Manufacturer: Polini · Material: Gray cast iron · Surface: sandblasted · Displacement: 63 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 43 mm · Ø cylinder neck: 45.7 mm · Ø Outlet outside: 22.4 mm · Ø outlet inside: 18.1 mm · Ø piston pin (B): 10 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Decompressor: Yes · Camouflaged: No · Area of application: Tuning
| Nominal diameter | 43 mm |
| Manufacturer | Polini |
| Material | Gray cast iron |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 63 ccm |
| Crankshaft stroke | 43 mm |
| Area of application | Tuning |
| Ø cylinder neck | 45.7 mm |
| Ø Outlet outside | 22.4 mm |
| Ø outlet inside | 18.1 mm |
| Ø piston pin (B) | 10 mm |
| Hole pattern [mm] | 55 x 34 |
| Outlet type | clamped |
| Number of fixing points | 3 pcs |
| Decompressor | Yes |
| Piaggio | Si Bravo / Super Bravo Grillo |
Ratings
Accessories & related products
Polini piston 43 mm (10 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 43 mm · Manufacturer: Polini · Ø outside piston (A): 42.94 mm · Compression height (C): 26.4 mm · Curvature (D): 2.55 mm · Total piston height (E): 50.5 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Ø piston pin (B): 10 mm · Piston ring height: 1.5 mm · Weight piston kit: 83 g
EUR 95.50
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
EUR 5.85
Moped fans also bought
Hot 
Brake cable Ø 1.8 mm x 220 cm (pear-shaped nipple)
Ø Stranded wire: 1.8 mm · Nipple shape: Pears · Ø nipple: 3.5 mm · Ø nipple: 6 mm · Nipple length: 10 mm · Manufacturer: Made in Germany · Material: Steel · Surface: galvanized (blue) · Area of application: Standard · Cable length: 2200 mm · Number of components: 1 pcs
EUR 2.85
Magura gas cable clamp / deco cable clamp Ø 5 x 6 mm
Manufacturer: Magura · Material: Brass · Material: Steel · Surface: nickel-plated · Ø outside: 5 mm · Thread type: M4x0.7 (standard thread) · Total length: 6 mm · Ø Cable bushing: 1.6 mm · Drive: Slot · Screw head: Lens head · Number of components: 2 pcs · Thread length: 4 mm
EUR 2.40
Hot
Leonelli 12V voltage regulator (1A quality)
Manufacturer: Leonelli · Material: Aluminum · Material: Plastic · Tension: 12 V · Performance: 100 W · Type of current: Alternating current (AC) · Ø mounting hole: 6 mm · Width: 27 mm · Height: 15 mm · Total length: 50 mm · Mounting type: Screws
EUR 41.70
Hot
Leonelli 6V voltage regulator (1A quality)
Manufacturer: Leonelli · Material: Aluminum · Material: Plastic · Tension: 6 V · Performance: 50 W · Type of current: Alternating current (AC) · Total length: 50 mm · Ø mounting hole: 6 mm · Width: 27 mm · Height: 15 mm · Mounting type: Screws
EUR 35.70
CIF Clamping screw front brake | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: CIF · Material: Steel · Surface: galvanized (blue) · Area of application: Standard · Ø outside: 11 mm · Thread type: M7x1 (standard thread) · Total length: 25 mm · Drive: External hexagon · Screw head: Hexagon · Number of components: 6 pcs · Thread length: 19.5 mm · Width across flats: 11 mm
EUR 4.65
Dell'Orto 13/13 SHA carburetor | Piaggio SI, Boss, Grillo
Nominal diameter: 13 mm · Manufacturer: Dell'Orto · Material: Aluminum · Camouflaged: No · Component group Carburetor: Carburetor complete · Carburetor type: SHA (Piaggio) · Choke control: Hand choke · Total length: 55 mm · Width: 60 mm · Color: black · Nozzle thread: M5x0.8 (standard thread) · Mounting type: Plug connection clamped · Ø fuel hose connection: 5.2 mm · Ø fuel hose connection: 6 mm · 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 · Height: 118 mm · Ø Internal connection: 16 mm · Area of application: Tuning
EUR 83.50
Collection only possible with online purchase and appointment.
