Crankpins for crankshafts with a width of 47 mm, as used in Vespa T5 models and in QUATTRINI casings for Vespa Smallframe models.

The crankpin has a lot of work to do. It connects the two halves of a crankshaft. Its center serves as a bearing for the conrod. The conrod not only rotates on the pin at engine speed, but also changes direction twice per revolution. That’s a lot of stress for such a small component.

To prevent the crankshaft journals from twisting, the crankpin must be precisely dimensioned. It is a simple part, but its quality is crucial to the Engine’s durability. We offer high-quality crankpins individually. These can be used to repair or modify crankshafts.