Crankshaft -MAZZUCCHELLI standard (rotary valve)- PK50 XL (Ø=20mm cone)

Crankshaft original (20-20), PK50 XL 12 mm thread (amt026)
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€103.99 *

Available immediately (delivery time 1-3 working days*)

P For this item you get fidelity point/s

Bearings
sizes:	12x17x13mm
Gudgeon pins
diameter:	12 mm
Crankshafts
stroke:	43 mm
thread rotor side:	M12x1,25 right-hand thread
thread drive side:	M10x1,5 right-hand thread
diameter crankwebs:	87 mm
width crankwebs:	37.7 mm
diameter bearing seat rotor side:	25 mm
diameter bearing seat drive side:	17 mm
diameter oil seal seat rotor side:	20 mm
diameter oil seal seat drive side:	22.7 mm
full circle crankshaft:
rotary valve crankshaft:
length rotary crankweb:	203 mm
Vespa V50, PV - intake timing for short rotary surface (22mm) (°):	121
Vespa PK XL2, ETS - intake timing for long rotary surface (28mm) (°):	130
Vespa PK XL2, ETS - intake timing for long rotary surface (37mm fully modified) (°):	142
crankcase has to be milled:
engine casing has to be modified:
Connecting rods
length connecting rod:	87 mm
thickness connecting rod:	5 mm
diameter small end connecting rod eye:	17 mm
lubricating hole at small end bearing:	yes
diameter crankpin:	20 mm
lubricating hole at crankpin bearing:	notch
crankpin shims:	yes
OEM numbers (for comparison purposes only)
Piaggio	2245875

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