Around the turn of the century there were a number of bicycle designs which did not use chains, but instead had a drive shaft with bevel gears. This bicycle is from 1891 and uses four bevel gears and a drive shaft for propulsion. This idea was later taken to motorcycles, such as the BMW shaft drive motorcycle some 50 years later.
why this Chainless Drive Bicycle mechanism not been implemented in mass ...........!!
Posted by: Account Deleted | October 27, 2010 at 11:24 AM