Crankshaft -MAZZUCCHELLI (rotary valve) PX flywheel taper- Vespa Sprint150 (VLB1T), GL150 (VLA1T), GT125 (VNL2T), GTR125 (VNL2T), VNB, VBA, VBB ,T4, Super

Preview: Crankshaft -MAZZUCCHELLI (rotary valve) PX flywheel taper- Vespa Sprint150 (VLB1T), GL150 (VLA1T), GT125 (VNL2T), GTR125 (VNL2T), VNB, VBA, VBB ,T4, Super

Description

Hybrid crankshaft suitable for the old Vespa models with large chassis, up to 150cc and small cone on the alternator side of the crankshaft. The best known of these models is certainly the Sprint (not Veloce!) as well as the GT and VBB models.

This crankshaft is a fusion of two types of crankshaft.
So the whole construction up to the generator side cone corresponds to the old specification for the Sprint engines. The cone for the mounting of the flywheel on the alternator side was manufactured with the dimensions of the later PX models.
This not only brings stability advantages as the stub can now be made much thicker, the biggest advantage is the possibility to use a contactless PX ignition. These are still available as original as well as in performance enhanced version from bgm.

Therefore one can increase the light output and the reliability with this shaft type without large expenditure, under retention of the original engine, around a multiple.

This shaft is manufactured in small series by the Italian steeped in tradition crankshaft manufacturer Mazzucchelli.

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€189.00 *

incl. VAT plus shipping costs

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

P For this item you get fidelity point/s

Bearings
sizes:	15x19x20mm
Gudgeon pins
diameter:	15 mm
Crankshafts
stroke:	57 mm
diameter crankwebs:	98 mm
diameter bearing seat rotor side:	25 mm
diameter bearing seat drive side:	25 mm
diameter oil seal seat rotor side:	20 mm
diameter oil seal seat drive side:	20 mm
full circle crankshaft:
rotary valve crankshaft:
crankcase has to be milled:
engine casing has to be modified:
Connecting rods
length connecting rod:	105 mm
diameter small end connecting rod eye:	19 mm

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