Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC machined for performance and lifespan Manufactured from the best materials with a special self-cleaning design, and hand-finished to perfection - Aprilia RS 660 (2021, 2024, 2022, 2023); Aprilia Tuono 660 Factory (2022); Aprilia Tuono 660 (2021, 2023, 2024, 2022)