About
The Zephyros is YJYOYO Club’s 2020 flagship and Park Woo-chan’s primary competition throw for the 2020 World Championships. The three-material construction stacks a POM ring between the 6061 aluminum body and the stainless steel outer rim, physically pushing the heavy rim further from the center than a standard bimetal construction allows — maximizing rim-weight efficiency while keeping total weight at 65.7g despite the 59.07mm oversized diameter. Represents the peak of YJYOYO Club’s manufacturing technology at that time.
