About
The Zephyros Double is Park Woo-chan’s bimetal signature, featuring both outer and inner stainless steel rims on a 6061 aluminum body. The outer rim drives spin power while the inner rim brings mass toward the center — a deliberate compromise between extreme rim weighting and centered control that YJYOYO describes as a “natural extension of the arm.” The 55.84mm step-round at 66g delivers fast snap and easy spin-up. Available in Black/Silver and Black/Black rim colorways.
