Additional weight, specially developed for the EVO ignition from Polini. It is used in conjunction with engine cases with reed valve intake and a full cheek crankshaft on your Piaggio Ciao, Si, Bravo and Boxer moped/moped
The balancing weight gives your engine a smooth, even running when stationary 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 diaphragm system and full cheek shaft. In addition to the Polini EVO REED, this also includes the Malossi MP-One engine housing.
Supplied with the required fastening screws.
Further parts from the EVO series, such as the complete ignition, can be found in the accessories section.
Quality product from the Italian manufacturer Polini.
| Thickness | 4 mm |
| Manufacturer | Polini |
| Ø inside | 90 mm |
| Material | Steel |
| Surface | galvanized (blue) |
| Area of application | Tuning |
| Ø outside | 120 mm |
| Number of fixing points | 5 pcs |
| Weight | 150 g |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
Accessories & related products
Polini EVO Electronic ignition | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Light coil voltage: 12 V · Direction of rotation: right · Ø Flywheel outside: 105 mm · Ø Flywheel outside: 138.5 mm · Ø Internal flywheel: 80.5 mm · Performance: 90 W · Number of fixing points: 2 pcs · Area of application: High End · Area of application: Racing · Area of application: Tuning · Weight: 554 g
CHF 499.90
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 · 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) · Thread length: 14 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 · Area of application: High End · Area of application: Racing · Area of application: Tuning · 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 · Weight: 784 g · Number of gears: 1 pcs
CHF 289.90
Polini 47 mm cylinder kit EVO 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Gray cast iron · Camouflaged: No · Displacement: 75 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 47 mm · Ø cylinder neck: 49.8 mm · Ø Outlet outside: 22 mm · Ø Outlet outside: 27 mm · Hole pattern [mm]: 43 x 52 · Ø piston pin (B): 12 mm · Hole spacing outlet: 23 mm · Hole spacing outlet: 38 mm · Number of fixing points: 4 pcs · Area of application: High End · Thread outlet: M5x0.8 (standard thread) · Area of application: Tuning · Decompressor: Yes
CHF 279.90
Polini CP 21 mm carburetor & air filter (hand choke) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Aluminum · Camouflaged: No · Component group Carburetor: Carburetor complete · Carburetor type: CP · Total length: 71 mm · Nominal diameter: 21 mm · Nozzle thread: M5x0.8 (standard thread) · Nozzle size: 82 · Nozzle size: 84 · Nozzle size: 86 · Ø Inside entrance: 42 mm · Width: 66 mm · Ø Output inside: 22.5 mm · Height: 122 mm · Ø Air filter connection: 47 mm · Ø fuel hose connection: 6 mm · Ø fuel hose connection: 7 mm · Mounting type: Rubber sleeve · Mixed oil connection: Yes · Vacuum connection: Yes · Choke control: Hand choke · Area of application: Racing · Area of application: Tuning · Nozzle block: 35-12 · Size of secondary nozzle: 40
CHF 169.90
Polini additional weight 110 g EVO ignition & rotary valve shaft | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Steel · Surface: galvanized (blue) · Ø inside: 90 mm · Ø outside: 120 mm · Thickness: 4 mm · Number of fixing points: 5 pcs · Area of application: Tuning · Weight: 110 g
CHF 24.50
Moped fans also bought
NGK B7ES spark plug long thread
Manufacturer: NGK · Candle designation: B7ES · Candle thread type: long · Area of application: Performance · Area of application: Racing · Area of application: Tuning · Spark plug socket: M4 · Spark plug socket: SAE · Suppressed: No · Thread type: MF14x1.25 (fine pitch thread) · Width across flats: 21 mm
CHF 6.50
Loctite 510 sealant 50 ml
Temperature resistance (min.): -55 - 250 °C · Manufacturer: Loctite · Material: Silicone · Contents: 50 ml · Area of application: Chemistry · Color: pink · Hazard warning: Causes serious eye irritation · Hazard warning: May cause allergic skin reactions · Hazard warning: May irritate the respiratory tract · Signal word: Attention · Hazard pictogram: GHS07 - Caution dangerous · Gap dimension (max.): 0.25 mm
CHF 39.90
CHF 798.00/l
swiing® revival stud bolt set M7x120 mm cylinder | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: swiing® revival parts · Diameter: 6.2 mm · Material: Steel · Surface: galvanized (blue) · Total length: 120 mm · Thread type: M7x1 (standard thread) · Thread length: 25 mm · Drive: External hexagon · Nominal diameter (thread): 7 mm · Width across flats: 11 mm · Strength class: 8 · Strength class: 8.8
CHF 11.70
Hot 
Malossi 47 mm cylinder kit BIG DEPS 4 MHR incl. head 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Malossi · Camouflaged: No · Material: Aluminum · Surface: sandblasted · Displacement: 75 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 47 mm · Ø Outlet outside: 22 mm · Ø Outlet outside: 27 mm · Number of fixing points: 4 pcs · Ø piston pin (B): 12 mm · Outlet type: clamped · Area of application: High End · Decompressor: Yes
CHF 409.90
Buzzetti main stand black (1A quality) | Puch Supermaxi LG1/ LG2
Manufacturer: Buzzetti · Material: Steel · Surface: powder-coated · Stand base - center mount (A): 200 mm · Total width of stand base (B): 255 mm · Color: black · Wide receptacle (C): 62.5 mm · Ø Receptacle (D): 18.5 mm · Spring nipple distance - center pivot axis (E): 100 mm · Wide upright foot (F): 25 mm · Wide upright foot (F): 70 mm · Total height: 215 mm
CHF 63.50
Polini EVO Electronic ignition | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Light coil voltage: 12 V · Direction of rotation: right · Ø Flywheel outside: 105 mm · Ø Flywheel outside: 138.5 mm · Ø Internal flywheel: 80.5 mm · Performance: 90 W · Number of fixing points: 2 pcs · Area of application: High End · Area of application: Racing · Area of application: Tuning · Weight: 554 g
CHF 499.90
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
