Athena 19-23 Yamaha YZ 250 F 77mm Bore 250cc Standard Bore Gasket Kit 2024-ram-2500-power-wagon-esi6605224 Instead of the armature rotating

Instead of the armature rotating

Kit helps to straighten and improve clean air flow to the engine for added throttle response and increased horsepower and torque

000 mm water column properties

with bumper and winch bumper options available for most models

Athena 19-23 Yamaha YZ 250 F 77mm Bore 250cc Standard Bore Gasket Kit 2024-ram-2500-power-wagon-esi6605224 Instead of the armature rotatingThe Standard Bore cylinder kit developed by Athena guarantees the same performance as the original spare parts, extreme reliability and optimal smoothness as a result of the lightweight aluminum cylinder, the barrel with nickel silicon coating, and a piston designed to reduce further friction. The kit includes the high quality aluminum cylinder with standard bore, the complete piston with the piston pin and rings, and all the necessary gaskets.