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, it generates impressive compression and power.
The scope of delivery includes all necessary parts such as gaskets, piston pins and exhaust ports. The decompressor is not included in the scope of delivery.
Note: Long-threaded spark plugs are required.
You can find other parts from the Polini EVOLUTION series in the accessories section.
Quality product from the Italian manufacturer Polini.
Details
| 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 |
| Number of fixing points | 4 pcs |
| Hole pattern [mm] | 43 x 52 |
| Ø piston pin (B) | 12 mm |
| Hole spacing outlet | 23 mm, 38 mm |
| Thread outlet | M5x0.8 (standard thread) |
| Decompressor | Yes |
| Camouflaged | No |
| Area of application | Tuning, High End |
Suitable for the following models
| Piaggio | Ciao - P, SC, PX, C24 Si Bravo / Super Bravo Grillo |
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Polini EVO Electronic ignition | Piaggio Ciao, SI, Bravo, Boxer
Weight: 554 g · Manufacturer: Polini · Area of application: High End · Area of application: Racing · Area of application: Tuning · Ø Internal flywheel: 80.5 mm · Light coil voltage: 12 V · Direction of rotation: right · Performance: 90 W · Ø Flywheel outside: 105 mm · Ø Flywheel outside: 138.5 mm · Number of fixing points: 2 pcs
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Polini EVO REED crankshaft 12 mm KoBo | Piaggio Ciao, SI, Bravo, Grillo
Weight: 784 g · Manufacturer: Polini · Area of application: High End · Area of application: Racing · Material: Steel · Area of application: Tuning · Cheek type: Full cheeks · Crankshaft stroke: 43 mm · Ø coupling pin / vario pin: 12 mm · Ø piston pin (B): 12 mm · Connecting rod length center-center: 87 mm · Total length crankpin ignition side: 91.5 mm · Total length crankpin ignition side: 105 mm · Ø crank webs: 70 mm · Thread type: MF10x1.25 (fine pitch thread) · Ø Connecting rod eye: 15 mm · Thread length: 14 mm · Bearing seat right: 15 mm · Ø Bearing seat (ignition side): 15 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 · 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 · Width: 66 mm · Total length: 71 mm · Manufacturer: Polini · Material: Aluminum · Camouflaged: No · Area of application: Racing · Area of application: Tuning · Component group Carburetor: Carburetor complete · Carburetor type: CP · Nozzle size: 82 · Nozzle size: 84 · Nozzle size: 86 · Ø Inside entrance: 42 mm · Mounting type: Rubber sleeve · Ø Output inside: 22.5 mm · Ø Air filter connection: 47 mm · Height: 122 mm · 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 · Size of secondary nozzle: 40
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Polini piston 47 mm EVO cylinder (12 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer, Grillo
Manufacturer: Polini · Nominal diameter: 47 mm · Ø outside piston (A): 46.92 mm · Ø piston pin (B): 12 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 · Piston weight: 101 g
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