First-class racing set with 64 cc displacement &ndash
| Manufacturer | Polini |
| Material | Aluminum |
| Surface | Nickel silicon carbide (known as Nikasil®) |
| Displacement | 65 ccm |
| Crankshaft stroke | 43 mm |
| Nominal diameter | 43.5 mm |
| Ø cylinder neck | 48 mm |
| Inlet window | 26 x 21 |
| Ø outlet inside | 22 mm |
| Thread inlet | M5x0.8 (standard thread) |
| Ø piston pin (B) | 12 mm |
| Hole spacing outlet | 42 mm |
| Hole spacing inlet | 32 mm, 39 mm |
| Outlet type | straight |
| Number of fixing points | 4 pcs |
| Thread outlet | M6x1 (standard thread) |
| Hole pattern [mm] | 44 x 44 |
| Area of application | Tuning, Racing |
| Camouflaged | No |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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Polini piston 43.5 mm type A | Puch
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Membrane transpacer Polini Trapez 12 mm aluminum | Puch ZA50
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Surface: Nickel silicon carbide (known as Nikasil®) · Nominal diameter: 43.5 mm · Manufacturer: Polini · Camouflaged: No · Material: Aluminum · Displacement: 65 ccm · Area of application: Racing · Area of application: Tuning · Crankshaft stroke: 43 mm · Ø cylinder neck: 48 mm · Ø outlet inside: 22 mm · Hole spacing inlet: 32 mm · Hole spacing inlet: 39 mm · Inlet window: 26 x 21 · Thread inlet: M5x0.8 (standard thread) · Hole pattern [mm]: 44 x 44 · Ø piston pin (B): 12 mm · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs
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Polini 43.5 mm cylinder head | Puch
Manufacturer: Polini · Material: Aluminum · Area of application: Racing · Area of application: Tuning · Width: 135 mm · Height: 48 mm · Total length: 145 mm · Ø cylinder: 43.5 mm · Hole pattern [mm]: 44 x 44 · Candle thread: long · Decompressor: No · Number of fixing points: 4 pcs
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Polini intake system 4-folding diaphragm "Big Valve" PHBG / CP carburetor | Puch
Surface: glass bead blasted · Manufacturer: Polini · Camouflaged: No · Material: Aluminum · Material: Plastic · Ø outside: 24 mm · Area of application: Racing · Area of application: Tuning · Number of flaps: 4 pcs · Membrane material: Carbonite · Thick membrane platelets: 0.3 mm · Mounting type: Screws · Ø mounting hole: 5.2 mm · Thread type: M5x0.8 (standard thread) · Ø inside: 28.6 mm · Number of fixing points: 4 pcs
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Manufacturer: GPO · Surface: sandblasted · Ø cylinder: 43.5 mm · Material: Aluminum · Width: 135 mm · Total length: 140 mm · Hole pattern [mm]: 44 x 44 · Height: 55 mm · Area of application: Tuning · Candle thread: short · Decompressor: No · Number of fixing points: 4 pcs
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swiing® ingenious crankshaft "High End" with mounted bearings | Puch E50
Manufacturer: swiing® ingenious parts · Material: Aluminum · Material: Steel · Cheek type: Full cheeks · Crankshaft stroke: 43 mm · Connecting rod length center-center: 90 mm · Total length of crankpin on clutch side: 74 mm · Total length crankpin ignition side: 66 mm · Ø crank webs: 69.9 mm · Ø Connecting rod eye: 15 mm · Ø piston pin (B): 12 mm · Ø Bearing seat (clutch side): 17 mm · Weight: 968 g · Ø Bearing seat (ignition side): 17 mm · Thread type: MF10x1 (fine pitch thread) · Thread length: 11 mm · Thread length: 15 mm · Dimension needle bearing: 12 / 15 x 14.2 mm (axe 12) · Wide crank webs: 34 mm · Length 1st paragraph: 9 mm · Length 2nd paragraph: 14.5 mm · Length 3rd paragraph: 25 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · Ø 1st step (on the coupling side): 22 mm · Ø 2nd shoulder (on the clutch side): 17 mm · Ø 3rd step (on the clutch side): 15 mm · Length of shoulder (ignition side): 26.3 mm · Number of gears: 1 pcs
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Surface: glass bead blasted · Manufacturer: Polini · Camouflaged: No · Material: Aluminum · Material: Plastic · Ø outside: 24 mm · Area of application: Racing · Area of application: Tuning · Number of flaps: 4 pcs · Membrane material: Carbonite · Thick membrane platelets: 0.3 mm · Mounting type: Screws · Ø mounting hole: 5.2 mm · Thread type: M5x0.8 (standard thread) · Ø inside: 28.6 mm · Number of fixing points: 4 pcs
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