Polini racing kit with 47 mm diameter and approx. 75 cc displacement for your Piaggio Ciao, Si, Bravo and Grillo moped / moped with corresponding Polini EVO REED engine housing.
The generously dimensioned, symmetrical overflow ducts and the open boost ports ensure maximum power delivery. The exhaust is attached via a 4-fold bolted exhaust flange plate. Two different sleeves are included in the scope of delivery, which are suitable for exhaust pipes with connection diameters of 22 mm or 27 mm.
The cast iron tuning cylinder is equipped with four stud bolts and an exhaust with two secondary exhaust ports. In combination with the newly developed cylinder head and a piston with two piston rings, impressive compression and power are generated.
| Nominal diameter | 47 mm |
| Manufacturer | Polini |
| Material | Gray cast iron |
| Displacement | 75 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 49.8 mm |
| Ø Outlet outside | 22 mm, 27 mm |
| Area of application | Tuning, High End |
| Ø piston pin (B) | 12 mm |
| Number of fixing points | 4 pcs |
| Hole spacing outlet | 23 mm, 38 mm |
| Thread outlet | M5x0.8 (standard thread) |
| Hole pattern [mm] | 43 x 52 |
| Decompressor | Yes |
| Camouflaged | No |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Grillo |
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Polini EVO REED crankshaft 12 mm KoBo | Piaggio Ciao, SI, Bravo, Grillo
Manufacturer: Polini · Material: Steel · Cheek type: Full cheeks · Ø coupling pin / vario pin: 12 mm · Crankshaft stroke: 43 mm · Thread type: MF10x1.25 (fine pitch thread) · Connecting rod length center-center: 87 mm · Weight: 784 g · Total length crankpin ignition side: 91.5 mm · Total length crankpin ignition side: 105 mm · Ø crank webs: 70 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 · Thread length: 14 mm · Dimension needle bearing: 12 / 15 x 14.7 mm (axe 12) · Wide crank webs: 32.6 mm · Length 1st paragraph: 21 mm · Length 2nd paragraph: 44.7 mm · Length 3rd paragraph: 64 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · 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 · Number of gears: 1 pcs
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Polini CP 21 mm carburetor & air filter (hand choke) | Piaggio Ciao, SI, Bravo, Boxer
Nominal diameter: 21 mm · Manufacturer: Polini · Camouflaged: No · Area of application: Racing · Area of application: Tuning · Component group Carburetor: Carburetor complete · Material: Aluminum · Width: 66 mm · Height: 122 mm · Carburetor type: CP · Total length: 71 mm · Ø Inside entrance: 42 mm · Ø Output inside: 22.5 mm · Ø Air filter connection: 47 mm · Mounting type: Rubber sleeve · Ø fuel hose connection: 6 mm · Ø fuel hose connection: 7 mm · Mixed oil connection: Yes · Vacuum connection: Yes · Choke control: Hand choke · Nozzle thread: M5x0.8 (standard thread) · Nozzle block: 35-12 · Nozzle size: 82 · Nozzle size: 84 · Nozzle size: 86 · Size of secondary nozzle: 40
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Polini exhaust "EVO" (27 mm connection) | Piaggio Ciao, SI, Bravo, Boxer
Ø outside: 83 mm · Manufacturer: Polini · Material: Aluminum · Material: Steel · Surface: blank · Surface: varnished · Color: black-matt · Color: graphite colors · Ø Silencer: 60 mm · Total length: 750 mm · Ø Internal connection: 27 mm · Ø Flame tube outside: 27 mm · Exhaust type: Cone / double cone · Mounting type: Tab for screwing · Number of fixing points: 2 pcs · Flame tube attachment: Plug connection
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Polini piston 47 mm EVO cylinder (12 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer, Grillo
Nominal diameter: 47 mm · Manufacturer: Polini · Ø outside piston (A): 46.92 mm · Compression height (C): 31.6 mm · Curvature (D): 2 mm · Total piston height (E): 55.5 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.2 mm · Ø piston pin (B): 12 mm · Weight piston kit: 101 g
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Polini exhaust flange EVO cylinder kit | Piaggio Ciao, Si, Bravo, Boxer
Manufacturer: Polini · Material: Steel · Thread type: M6x1 (standard thread) · Surface: burnished · Total length: 13.2 mm · Total length: 17.2 mm · Ø inside: 18 mm · Ø inside: 24 mm · Ø mounting hole: 6.5 mm · Ø outside: 22.4 mm · Hole spacing: 23 - 38 mm · Ø outside: 27 mm · Thread length: 13 mm
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Polini EVO REED crankshaft 12 mm KoBo | Piaggio Ciao, SI, Bravo, Grillo
Manufacturer: Polini · Material: Steel · Cheek type: Full cheeks · Ø coupling pin / vario pin: 12 mm · Crankshaft stroke: 43 mm · Thread type: MF10x1.25 (fine pitch thread) · Connecting rod length center-center: 87 mm · Weight: 784 g · Total length crankpin ignition side: 91.5 mm · Total length crankpin ignition side: 105 mm · Ø crank webs: 70 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 · Thread length: 14 mm · Dimension needle bearing: 12 / 15 x 14.7 mm (axe 12) · Wide crank webs: 32.6 mm · Length 1st paragraph: 21 mm · Length 2nd paragraph: 44.7 mm · Length 3rd paragraph: 64 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · 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 · Number of gears: 1 pcs
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