Motocare disc oil cap for the Yamaha FZ-S V3 / V4 that covers the disc brake fluid reservoir at the handlebar. It is a folded black cover with "FZ" lettering cut through the front face and two long slots across the top, sitting over the reservoir and wrapping down its side. Motocare makes it in stainless steel for a durable, corrosion-resistant cap that stays reliable in challenging riding conditions while sharpening the look of the brake system. Installation is easy and the fit is snug, giving the disc brake reservoir a secure, styled cover.