Publicado Por En julio 22, 2026 The YIYUN TECH 42V 500W Brushed Motor Controller is a high-quality electric controller designed for electric bikes. Made by Yiyun Tech in China, this controller is compatible with universal bike types and operates at a voltage of 36V. The YK31C model offers reliable performance for electric bike enthusiasts looking to upgrade or repair their existing motor controller. With its sturdy construction and efficient power management, this controller is a crucial component for maintaining the optimal performance of electric bicycles.