Chaya Roller Derby Plates - Ophira DCM 2.0, silver 45° TruckChaya (Kai ah) is the new roller derby specific brand from Powerslide. Powerslide have 20+ years of skating experience to pull from, and they have spent the past three years perfecting the Chaya product line. Their aim is to create clean, pure, durable and performance focused products. Perhaps the most exciting part of Chaya's product line is their Dual Center Mount System for the first time in derby, you can self mount your boot to your plate with