Specialized Bicycles: Tarmac -Tarmac is YOUR complete race bike. The only bike where every size has been developed independently based on performance targets derived from real world data. So no matter what size you ride, you’ll get complete performance.
Chainless "Bike by Nils Sveje has an in-crank generator for electricity transmission instead of a chain. Drive is transmitted through an automatic gearbox and the handlebar contains two wireless rings to charge or set the usage of the battery.