The Shimano Alfine S7001-8 internally geared hub offers a wide 307% gear range. It has an improved internal structure for better gear engagement. It's designed for use with Center Lock disc brakes.
The Shimano Nexus SG-C7000-5D is a dedicated e-bike hub. It's designed for use with center-lock disc brakes. It has greater strength and durability for seamless compatibility with mid-ship motors.
The Shimano Nexus SG-C7000-5R is a dedicated e-bike hub. It's designed for use with roller brakes. It has greater strength and durability for seamless compatibility with mid-ship motors.