Description
Polini Piston Pin 10x36x5mm CPI, for repairing your 50 - 70cc pistons.
- for 50cc - 70cc cylinders
- 10x36mm piston pin
- for CPI / Morini / Minarelli etc.
Questions about the product
Notes and Safety
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.