Vespa PK 50 XL to 125cc BGM PRO Racing Crankshaft (for Reed Valve) Full Circle Web - 54mm Stroke 105mm Conrod Ø=20mm cone Suspension Spares No modification needed to housing

No modification needed to housing

Fits: Air Cooled Models

Suitable for: Series 3

CS50Z / 5RW)

Vespa PK 50 XL to 125cc BGM PRO Racing Crankshaft (for Reed Valve) Full Circle Web - 54mm Stroke 105mm Conrod Ø=20mm cone Suspension Spares No modification needed to housingVespa PK 50 XL to 125cc BGM PRO Racing Crankshaft (for Reed Valve) Full Circle Web 54mm Stroke 105mm Conrod =20mm cone The shaft has a stroke of 54 mm (series = 51mm) and has a 105 mm long connecting rod (series 97mm), which in its last evolutionary stage has now been widened to a proud 5mm thickness. The crank webs are larger in diameter (both sides: 87mm) than those of a series shaft (86. 8mm). Therefore the crankcase has to be enlarged in diameter