Crankshaft -MAZZUCCHELLI Racing (rotary valve) 60mm stroke PX-flywheel taper- Vespa Sprint150 (VLB1T), GL150 (VLA1T), GT125 (VNL2T), GTR125 (VNL2T), VNB, VBA, VBB ,T4, Super

Preview: Crankshaft -MAZZUCCHELLI Racing (rotary valve) 60mm stroke PX-flywheel taper- Vespa Sprint150 (VLB1T), GL150 (VLA1T), GT125 (VNL2T), GTR125 (VNL2T), VNB, VBA, VBB ,T4, Super

Description

Hybrid crankshaft with 60mm stroke instead of the original 57mm, 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.

With this crankshaft two crankshaft types were merged together.
The whole construction up to the alternator cone corresponds to the old specification for the Sprint engines.

The cone for the flywheel, however, was manufactured with the dimensions of the later PX models. This brings not only stability advantages with itself, since the stump is now substantially thicker and the possibility offers to be able to use an electronic PX ignition.
These are still original as well as in performance-enhanced version of BGM available.
Therefore, with this type of shaft, you can increase the light output and reliability many times over without much effort, while retaining the original engine.

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

(Tw051121)

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This item is currently not available.

€198.00 *

incl. VAT plus shipping costs

The item is ordered and will be in stock soon

Estimated delivery date: 03/05/2024

P For this item you get fidelity point/s

Bearings
sizes:	15x19x20mm
Gudgeon pins
diameter:	15 mm
Crankshafts
stroke:	60 mm
thread rotor side:	M12x1,25 right-hand thread
thread drive side:	M12x1,5 right-hand thread
diameter crankwebs:	98 mm
diameter bearing seat rotor side:	25 mm
diameter bearing seat drive side:	25 mm
diameter oil seal seat rotor side:	24 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

Please inform me once the product is available again.

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