: "KMC 19T Rear Sprocket Enviolo/Nuvinci 1/8, Chromoly Black. This KMC sprocket is an essential part for your bicycle. With 19 teeth, the sprocket ensures a smooth and efficient transfer of power. It is made of high-quality chromoly material, which ensures durability and reliability. With the black color, this sprocket fits perfectly with any cycling style." Product Specifications - Brand: KMC - Primary Base Color: Black - Number of Teeth: 19 - Receipt Description: KMC Sprocket