Compared to Z system genuine material, super durable sleeve having approximately twice the abrasion resistance comparable to plating liner.
The cylindrical contact surface polished with 3 micron copper plating, realize improvement in adhesion and thermal conductivity at the metal molecular level for the cylinder.
I.D. :72,50mm
O.D. :78,60mm
Pistonsize: from 73mm (1105ccm) to 74mm (1135ccm)
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