Of all the components that make up this Exhaust Valve the Ball has the lowest price.
Parts such as the Exhaust Valve: O Ring(d:2.4,id:27.7), Spring, Holder,exhaust Valve, Screw(5x10) are included in the Lt500r Quad Racer 1990 (l) Usa (e03) Quadracer Quad-racer Exhaust Valve parts fiche.
With a quantity of three pieces, the Ball is the most used part in the EXHAUST VALVE diagram.