High-precision BGM PRO auxiliary shaft axle for the bearing of the primary drive of the Vespa PX125-200 models.
Made of extremely durable and tempered 42CroMo4V steel.
Qualitatively not comparable with cheaper replicas.
This allows the primary drive to be repaired to 100% factory specification.
Mandatory equipment for tuned engines.
INFO: The auxiliary shaft axle has a bearing surface on which the needles of the primary bearing on the alternator side run. While the needles hardly ever wear out, the bearing surface on the auxiliary shaft axle should be inspected more closely during each engine revision. Often there are already traces of pitting (material breakouts). The auxiliary shaft axis should then be changed including the needles.
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