Big Bore Kit

Item Weight > 4 Lbs

  • Yamaha Yfz450 Yfz 450 98mm Je 12.51 Piston Athena Big Bore Cylinder Top End Kit
  • Athena Yfz450r Yfz 450r 98mm 478cc Je 131 Piston Big Bore Cylinder Top End Kit
  • Yamaha Yfz450 Yfz 450 98mm Je 131 Piston Athena Big Bore Cylinder Top End Kit