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Ball bearing
Dimensions
15x19x20mm
 
Piston pin
Diameter
15 mm
 
Crankshafts
Stroke
53 mm
Crank web diameter
87 mm
Crankcase must be spindled
nein
Motor housing must be modified
nein
Rotary vane crankshaft
ja
Full cheek crankshaft
nein
Bearing seat diameter on alternator side
25 mm
Bearing seat diameter on drive side
17 mm
Diameter of sealing ring seat on alternator side
24 mm
Diameter of sealing ring seat on drive side
22.7 mm
 
Connecting rod
Connecting rod length
97 mm
Connecting rod eye top diameter
19 mm
 
OEM numbers (for comparison purposes only)
Scooter Center:
3330081