Polini Item number: P1660054
Polini
149,00 €*
available immediately
Shipping weight 1,7 kg
The POLINI 70ccm SPORT is a perfect all-round cylinder.
Very durable and finely finished cast iron cylinder, which gets its performance mainly from the increase in displacement.

Good workmanship, large channel areas and a very good quality distinguish this cylinder. Grows with the tasks and the performed expansion stages.

Either you build it with the original carburetor on it and have fun immediately or you continue to tune and have fun until the doctor comes. This kit is thus a super basis for potent engines. From Touring to Streetracing everything is possible here.

If it is to be driven without additional modifications, the main jet must be adapted (5-10% larger).

As first measures for further performance increases larger carburettors with a diameter of 17.5mm to 19mm and accordingly designed exhaust systems are recommended.

Delivery includes pistons, gaskets and necessary assembly material.
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General
Performance class
Sport
 
Piston pin
Diameter
10 mm
 
Spark plugs
Thread type
M14x1,25
Thermal value NGK
B8HS
Spark plug thread
kurz
 
Cylinder
Drill hole
47 mm
Type of cooling
luftgekühlt
Displacement
68 cm³
Motor type
2-Takt
Material
Grauguß
Piston raceway material
Grauguß
Cylinder gasket set included
ja
Cylinder head included
nein
Outlet shape
1-teilig (oval)
Exhaust assembly
Flansch
Flange type
2-Schrauben
Distance between exhaust studs
48 mm
Threaded exhaust studs
M6
Number of boost ports
1
Number of transfers (incl. boost ports)
5
 
Crankshafts
Stroke
39.2 mm
 
Piston
Number of piston rings
2
Piston manufacturing method
gegossen
 
Piston rings
Piston ring type
Rechteck-Ring
Piston ring thickness
1,2mm
 
Piston clips
Piston clip type
Doppel G-Typ
Wire gauge Piston clip
1,0mm
 
OEM numbers (for comparison purposes only)
Scooter Center:
P1660054
Polini:
166.0054, 1660054, P166.0054, P1660054