Polini EVO REED racing crankshaft, suitable for your Piaggio Ciao, SI, Bravo and Grillo moped / moped in combination with the Polini EVO REED engine housing.
The finely balanced tuning crankshaft fits all cylinder kits with 12 mm piston pins, whereby the focus is on the Polini EVO 47 mm cylinder kit.
The quality of the workmanship and the steel used is exceptionally high, which ensures impressive durability.
The crankshaft stub has been reinforced and fitted with an M10 fine thread.
No shim needs to be inserted between the racing crankshaft and its main bearings for installation.
Note: Use with the Malossi MP-One racing gear has not been tested by us.
A matching crescent, ball bearings and other add-on parts can be found in the accessories section.
Quality product from the Italian manufacturer Polini.
| Dimension needle bearing | 12 / 15 x 14.7 mm (axe 12) |
| Manufacturer | Polini |
| Material | Steel |
| Area of application | High End, Tuning, Racing |
| Cheek type | Full cheeks |
| Crankshaft stroke | 43 mm |
| Ø coupling pin / vario pin | 12 mm |
| Connecting rod length center-center | 87 mm |
| Thread type | MF10x1.25 (fine pitch thread) |
| Total length crankpin ignition side | 105 mm, 91.5 mm |
| Ø crank webs | 70 mm |
| Ø piston pin (B) | 12 mm |
| Thread length | 14 mm |
| Ø Connecting rod eye | 15 mm |
| Bearing seat right | 15 mm |
| Ø Bearing seat (ignition side) | 15 mm |
| 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 |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Grillo |
Ratings
Accessories & related products
Polini Racing 43 mm cylinder kit incl. head 12 mm KoBo | Piaggio Ciao, Bravo, Boxer
Material: Gray cast iron · Manufacturer: Polini · Surface: sandblasted · Nominal diameter: 43 mm · Camouflaged: No · Crankshaft stroke: 43 mm · Displacement: 63 ccm · Ø cylinder neck: 45.7 mm · Ø Outlet outside: 22.4 mm · Ø outlet inside: 18.1 mm · Ø piston pin (B): 12 mm · Hole pattern [mm]: 55 x 34 · Number of fixing points: 3 pcs · Outlet type: clamped · Decompressor: Yes · Area of application: Tuning
CHF 239.90
SKF 6202 C4 ball bearing 15/35/11
Manufacturer: SKF · Material: Steel · Bearing type: Deep groove ball bearing · Stock number: 6202 · Ball bearing closed: No · Bearing clearance: C4 · Bearing cage: Plastic cage ball-guided · Width: 11 mm · Ø inside: 15 mm · Ø outside: 35 mm · Area of application: Standard
CHF 13.90
Polini EVO Electronic ignition | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Ø Internal flywheel: 80.5 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · Light coil voltage: 12 V · Performance: 90 W · Direction of rotation: right · Number of fixing points: 2 pcs · Ø Flywheel outside: 105 mm · Ø Flywheel outside: 138.5 mm · Weight: 554 g
CHF 499.90
Polini 47 mm cylinder kit EVO 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Gray cast iron · Area of application: High End · Area of application: Tuning · 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 · Number of fixing points: 4 pcs · Hole pattern [mm]: 43 x 52 · Ø piston pin (B): 12 mm · Hole spacing outlet: 23 mm · Hole spacing outlet: 38 mm · Thread outlet: M5x0.8 (standard thread) · Decompressor: Yes · Camouflaged: No
CHF 279.90
Polini 46 mm cylinder kit aluminum | Peugeot 103, SPX50, 104, 105, GL 10
Manufacturer: Polini · Material: Aluminum · Displacement: 65 ccm · Nominal diameter: 46 mm · Ø cylinder neck: 50 mm · Ø Outlet outside: 25 mm · Number of fixing points: 4 pcs · Hole pattern [mm]: 45.4 x 50.5 · Ø piston pin (B): 7 mm · Outlet type: slanted · Hole spacing outlet: 50 mm · Thread outlet: M7x1 (standard thread) · Decompressor: Yes · Camouflaged: No
CHF 229.90
Polini CP 21 mm carburetor & air filter (hand choke) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Aluminum · Component group Carburetor: Carburetor complete · Area of application: Racing · Area of application: Tuning · Carburetor type: CP · Nominal diameter: 21 mm · Width: 66 mm · Total length: 71 mm · Height: 122 mm · Ø fuel hose connection: 6 mm · Ø fuel hose connection: 7 mm · Ø Inside entrance: 42 mm · Ø Output inside: 22.5 mm · Mounting type: Rubber sleeve · Ø Air filter connection: 47 mm · Mixed oil connection: Yes · Vacuum connection: Yes · Choke control: Hand choke · Nozzle thread: M5x0.8 (standard thread) · Nozzle block: 35-12 · Camouflaged: No · Nozzle size: 82 · Nozzle size: 84 · Nozzle size: 86 · Size of secondary nozzle: 40
CHF 169.90
Hot 
Polini exhaust "EVO" (27 mm connection) | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Aluminum · Material: Steel · Surface: blank · Surface: varnished · Color: black-matt · Color: graphite colors · Ø outside: 83 mm · Total length: 750 mm · Ø Internal connection: 27 mm · Ø Silencer: 60 mm · Number of fixing points: 2 pcs · Mounting type: Tab for screwing · Ø Flame tube outside: 27 mm · Exhaust type: Cone / double cone · Flame tube attachment: Plug connection
CHF 249.90
Explore categories from Engine block
Moped fans also bought
Polini EVO Electronic ignition | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Ø Internal flywheel: 80.5 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · Light coil voltage: 12 V · Performance: 90 W · Direction of rotation: right · Number of fixing points: 2 pcs · Ø Flywheel outside: 105 mm · Ø Flywheel outside: 138.5 mm · Weight: 554 g
CHF 499.90
Polini 47 mm cylinder kit EVO 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: Polini · Material: Gray cast iron · Area of application: High End · Area of application: Tuning · 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 · Number of fixing points: 4 pcs · Hole pattern [mm]: 43 x 52 · Ø piston pin (B): 12 mm · Hole spacing outlet: 23 mm · Hole spacing outlet: 38 mm · Thread outlet: M5x0.8 (standard thread) · Decompressor: Yes · Camouflaged: No
CHF 279.90
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
