Moto&Parts-BBK&4Vhead-PB04-BII: YX4VHead&62MM

☆. Description

4 Valve conversion kit YX 160 62mm Ceremic-Coated cylinder with Honda Spark Plug ER9EH

from 21 to 25bhp options
Here is our complete kit with all you will need to convert you stock 2V to 4V
57mm stroke = 160cc
Option 2 = 42mm