Centerdrive

Centerdrive refers to a type of bicycle drivetrain where the primary drive components, typically the crankset and bottom bracket, are positioned in the center of the frame. This is in contrast to other drivetrain configurations like hub gears or those that use a separate motor unit. In a traditional centerdrive system, the rider's pedaling motion is transferred through the chain to the rear wheel.

The advantages of a centerdrive system often include a lower center of gravity for the rider and the bike's weight, which can contribute to improved handling and stability. The central placement of heavy components can also lead to a more balanced weight distribution. This configuration is commonly found on many types of bicycles, from standard road and mountain bikes to electric bikes where the motor can be integrated into the bottom bracket area.

In the context of electric bicycles, a centerdrive motor is a popular choice. These motors are integrated into the crankset, allowing the motor's torque to be applied directly through the bike's existing drivetrain. This means the motor works in conjunction with the gears, offering a more natural pedaling feel and better efficiency, especially on hills. The rider can shift gears as they normally would, and the motor assists accordingly. This integration can also make the bike feel more agile due to the centralized mass.