Besides the over-the-top XFI, Heisenberg was also exhibiting a broader line of
city-friendly, Bosch-powered e-bikes that are no less stylized. The Gates Carbon
belt drives are catching on in popularity for being nearly maintenance-free and
The Raleigh Leeds Impulse was one of many compact commuter e-bikes on view in
Germany. Powered by a 250-watt battery, the bike uses a Shimano Nexus rear hub.