The JOKER MACHINE Billet Fuel Tank Cap is engineered from 6061‑T6 aluminum, a material known for its high strength‑to‑weight ratio and excellent corrosion resistance. Finished in a matte black coating, the cap adopts the 900 Union Jack style, a design that balances aerodynamic efficiency with robust sealing performance for street‑style riding applications. Each unit is a single, self‑contained component, ready for direct installation on compatible fuel valves and lines.
Available in several configurations—including CAP GAS TRI 900 BLK, CAP GAS JOKER BLK 96‑19, CAP GAS SMOOTH BLK 96‑19, CAP GAS TECHNO BLK 96‑19, CAP GAS JOKER SMOOTH CLR, CAP FUEL KNURL CHR 96‑19, and CAP FUEL KNURL BLK 96‑19—the cap offers a range of finishes (black, silver, anodized) to match a rider’s aesthetic preferences while maintaining the same structural integrity and sealing capability across all variants.