KMC e12 E-Bike chain, 12-speed, 130-link, EPT with anti-rust coating. Designed for e-bikes, designed for high-powered applications. Manufacturer: KMC. Model: e12 EPT grey E-Bike Type: E-BIKE chain. Designed for e-bikes with a centrally located engine. Triple-X durability. Increased pin durability. Size: 1/2x11/128. Length: 130 links BOX version (plastic box). Chain clip included Increased pin durability. Vibration resistant. Nickel-plated. X-Bridge design for increased shifting speed, smoothness and precision. Color: gray