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Just like the human heart, a motor is the most important part of the e-bike, so it was the Sport Drive – the battery, the mid-motor – that defined the ideal shape of the frame built around it. Powered by the creativity of Dutch designers and bike specialists in Kopřivnice (CZ), the Sport Drive system and frame was developed: user-friendly blend of technology and aesthetics that can only be achieved by a true e-bike lovers. Deeply involved engineers at the BFI knows various needs for various cyclists and in Rock Machine, we are using two different versions of one concept: one with the motor in the middle and one with the motor in the rear.