Pistón Light Bore ø60mm (A) Cilindro 164cc (Cabeza 125cc) Yuminashi

60mm Yuminashi 164cc Light Bore piston set with 13mm piston pin to use in combination with the stock 125cc cylinder head.

This piston set comes complete with the piston, piston rings, 13mm piston pin and the 2 piston clips.

The piston rings are treated with a hard chromium plating layer (Cr) which has excellent characteristics which combine the original properties of chromium metal with the advantages of erectro-deposits. 

The main features of hard chromium plating are as follows:

1. Extermely high hardness of HmV (Micro Vickers)
800 to 1100 (cf. gray cast iron 220 to 270)

2. High melting point of approx. 1800°C
(cf. cast iron 1200°C)

3. Good thermal conductivity and corrosion
resistance.

4. Low friction factor and excellent wear resistance.
Such features are very effective in preventing
piston ring wear.