Description
Stage6 Piston Pin Racing 72cc d=13mm GY6 50cc 4-stroke, spare piston (or gudgeon) pin for Stage6 cylinders.
Spare piston pin for those of you who want to replace the piston pin instead of the entire piston. Piston pins can fracture or get damaged by debris in the engine, excesssive overloads or incorrect combustion.
What is a piston pin?
The piston pin, also called gudgeon pin or wrist pin, is a cylindrical component made of hardened steel that connects the piston to the connecting rod in internal combustion engines. The piston pin allows the piston to move linearly in the cylinder, transmitting power to the connecting rod and crankshaft.
The piston pin sits in the pin boss of the piston and is held in place by retaining circlips. Each time the piston is reassembled, the circlips and the small end bearing must be replaced and the entire unit lubricated.