
Additional weight or balancing weight that is used in conjunction with the EVO Zündung from Polini on engine cases with rotary valve crankshaft on your Piaggio Ciao, Si, Bravo and Boxer moped / moped to compensate for the resulting imbalance.
The balancing mass gives your engine a smooth, even running when stationary and in operation and improves the «starting behavior». Depending on the setting, even more torque can be achieved with the additional weight.
The flywheel is suitable for all gearbox types that are operated with a rotary valve. In addition to the Polini Speed Engine, this also includes the original engine gearbox.
| Ø inside | 90 mm |
| Weight | 110 g |
| Ø outside | 120 mm |
| Manufacturer | Polini |
| Material | Steel |
| Surface | galvanized (blue) |
| Thickness | 4 mm |
| Area of application | Tuning |
| Number of fixing points | 5 pcs |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
Accessories & related products
Polini EVO Electronic ignition | Piaggio Ciao, SI, Bravo, Boxer
Weight: 554 g · Manufacturer: Polini · Light coil voltage: 12 V · Performance: 90 W · Direction of rotation: right · Ø Internal flywheel: 80.5 mm · Ø Flywheel outside: 105 mm · Ø Flywheel outside: 138.5 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · Number of fixing points: 2 pcs
EUR 615.20
Polini EVO REED crankshaft 12 mm KoBo | Piaggio Ciao, SI, Bravo, Grillo
Weight: 784 g · Manufacturer: Polini · Material: Steel · Cheek type: Full cheeks · Ø coupling pin / vario pin: 12 mm · Crankshaft stroke: 43 mm · Connecting rod length center-center: 87 mm · Number of gears: 1 pcs · 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 · Area of application: High End · Thread type: MF10x1.25 (fine pitch thread) · Area of application: Racing · Area of application: Tuning · 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 · 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
EUR 356.80
Polini 47 mm cylinder kit EVO 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Gray cast iron · Displacement: 75 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 47 mm · Ø cylinder neck: 49.8 mm · Camouflaged: No · Ø Outlet outside: 22 mm · Ø Outlet outside: 27 mm · Hole spacing outlet: 23 mm · Hole spacing outlet: 38 mm · Hole pattern [mm]: 43 x 52 · Decompressor: Yes · Ø piston pin (B): 12 mm · Area of application: High End · Area of application: Tuning · Thread outlet: M5x0.8 (standard thread) · Number of fixing points: 4 pcs
EUR 344.50
Polini CP 21 mm carburetor & air filter (hand choke) | Piaggio Ciao, SI, Bravo, Boxer
Total length: 71 mm · Manufacturer: Polini · Material: Aluminum · Component group Carburetor: Carburetor complete · Carburetor type: CP · Nominal diameter: 21 mm · Choke control: Hand choke · Width: 66 mm · Height: 122 mm · Camouflaged: No · Ø Inside entrance: 42 mm · Ø Output inside: 22.5 mm · Ø Air filter connection: 47 mm · Area of application: Racing · Area of application: Tuning · Ø fuel hose connection: 6 mm · Ø fuel hose connection: 7 mm · Mixed oil connection: Yes · Vacuum connection: Yes · Nozzle thread: M5x0.8 (standard thread) · Nozzle block: 35-12 · Nozzle size: 82 · Nozzle size: 84 · Nozzle size: 86 · Size of secondary nozzle: 40 · Mounting type: Rubber sleeve
EUR 209.10
Polini piston 47 mm EVO cylinder (12 mm KoBo) | Piaggio Ciao, SI, Bravo, Boxer, Grillo
Manufacturer: Polini · Ø outside piston (A): 46.92 mm · Compression height (C): 31.6 mm · Curvature (D): 2 mm · Nominal diameter: 47 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
EUR 108.20
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Polini air filter | Piaggio Ciao, SI, Bravo, Boxer
Ø outside: 53 mm · Total length: 29 mm · Manufacturer: Polini · Material: Plastic · Color: black · Filter type: Foam · Width: 98 mm · Height: 94.7 mm · Camouflaged: No · Ø Internal connection: 50.6 mm · Area of application: Tuning · Mounting type: Plug connection clamped
EUR 18.30
Polini Speed Engine engine housing electronic ignition | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Aluminum · Surface: sandblasted · Color: silver · Stock number: 6202 · Crankshaft stroke: 43 mm · Ignition type: Electronic · Total length: 215 mm · Width: 175 mm · Height: 104 mm
EUR 258.30
Polini EVO Electronic ignition | Piaggio Ciao, SI, Bravo, Boxer
Weight: 554 g · Manufacturer: Polini · Light coil voltage: 12 V · Performance: 90 W · Direction of rotation: right · Ø Internal flywheel: 80.5 mm · Ø Flywheel outside: 105 mm · Ø Flywheel outside: 138.5 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · Number of fixing points: 2 pcs
EUR 615.20







