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 |
| Area of application | Tuning |
| Material | Gray cast iron |
| Displacement | 63 ccm |
| Surface | sandblasted |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 45.7 mm |
| Ø Outlet outside | 22.4 mm |
| Number of fixing points | 3 pcs |
| Ø outlet inside | 18.1 mm |
| Ø piston pin (B) | 10 mm |
| Outlet type | clamped |
| Hole pattern [mm] | 55 x 34 |
| Decompressor | Yes |
| Camouflaged | No |
| Piaggio | Si Bravo / Super Bravo Grillo |
Accessories & related products
Polini piston 43 mm (10 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Nominal diameter: 43 mm · 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) · Piston ring height: 1.5 mm · Ø piston pin (B): 10 mm · Piston weight: 83 g
EUR 98.00
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 · Strength class: 10.9 · Total length: 120 mm · Thread type: M7x1 (standard thread) · Thread length: 20 mm · Thread length: 30 mm
EUR 6.00
Moped fans also bought
Brake cable Ø 1.8 mm x 220 cm (pear-shaped nipple)
Ø nipple: 3.5 mm · Ø nipple: 6 mm · Manufacturer: Made in Germany · Material: Steel · Surface: galvanized (blue) · Number of components: 1 pcs · Ø Stranded wire: 1.8 mm · Cable length: 2200 mm · Nipple shape: Pears · Nipple length: 10 mm · Area of application: Standard
EUR 2.95
Magura gas cable clamp / deco cable clamp Ø 5 x 6 mm
Manufacturer: Magura · Material: Brass · Material: Steel · Surface: nickel-plated · Number of components: 2 pcs · Ø outside: 5 mm · Thread type: M4x0.7 (standard thread) · Ø Cable bushing: 1.6 mm · Drive: Slot · Thread length: 4 mm · Screw head: Lens head · Total length: 6 mm
EUR 2.45
CIF Clamping screw front brake | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: CIF · Area of application: Standard · Material: Steel · Surface: galvanized (blue) · Thread type: M7x1 (standard thread) · Drive: External hexagon · Ø outside: 11 mm · Screw head: Hexagon · Width across flats SW: 11 mm · Total length: 25 mm · Thread length: 19.5 mm · Number of components: 6 pcs
EUR 4.80
Dell'Orto 13/13 SHA carburetor | Piaggio SI, Boss, Grillo
Nominal diameter: 13 mm · Manufacturer: Dell'Orto · Material: Aluminum · Component group Carburetor: Carburetor complete · Color: black · Carburetor type: SHA (Piaggio) · Choke control: Hand choke · Ø fuel hose connection: 5.2 mm · Ø fuel hose connection: 6 mm · Total length: 55 mm · Ø without reducing sleeve: 18 mm · Ø Inside entrance: 13 mm · Width: 60 mm · Ø Output inside: 13 mm · Height: 118 mm · Ø Air filter connection: 50.8 mm · Ø Internal connection: 16 mm · Mounting type: Plug connection clamped · Nozzle thread: M5x0.8 (standard thread) · Camouflaged: No · Nozzle size: 66 · Area of application: Tuning
EUR 85.70
Not in stock
Collection only possible with online purchase and appointment.
