79mm For Honda CBX250 XR250 Big Bore Cylinder Piston Gasket Kit 300cc

  

AFTERMARKET REPLACEMENT/UPGRADE PART, NOT a genuine Honda OEM component. Serves as direct replacement for XR300/CB300, and upgrades CBX250/XR250 from 250cc to 300cc.

Engine Displacement: 300CC (296cc nominal). Compatible Engine Types: Water-cooled (CBX250/XR300/CB300), Air-cooled (XR250) 4-stroke single-cylinder. Package Components: Reinforced cast iron cylinder block, forged aluminum piston, premium piston rings, piston pin, circlips, full top-end gasket set. Construction: Heat-dissipating cast iron cylinder, optimized for off-road riding and urban commuting.

1 × Full 79mm 300CC Cylinder Piston Kit (all components for engine top-end overhaul/upgrade).