This 9-pin IP67 waterproof e-bike motor extension cable is an essential component for maintaining and upgrading your electric bicycle's motor system. Featuring an 15mm diameter connector, this cable is specifically designed for extending, repairing, or replacing the existing motor cable that connects your e-bike's motor to its controller. The IP67 waterproof and dustproof rating ensures reliable performance in all weather conditions, from heavy rain to dusty trails. Built with gold-plated copper alloy contacts, this cable delivers superior electrical conductivity, excellent corrosion resistance, and a stable connection that won't degrade over time. It supports a wide range of motor power levels, making it compatible with 500W, 750W, 1000W, and 1500W motors. Whether you're performing routine maintenance, extending your motor cable for a custom build, or replacing a damaged cable, this durable male-to-female connector provides the dependable connection your e-bike needs to perform at its best.