A dual drive bicycle is provided having a front wheel, hand-cranked drive train including at least two pairs of a drive sprocket and driven sprocket, thereby allowing the diameter of the drive sprocket in the handlebar area to be made much smaller, thereby reducing the exposure of the hands and face of the rider to the sprocket teeth and chains of the front wheel drive train. The multiple pairs of drive sprockets and driven sprockets are mounted on a dual crown front fork that safely allows the use of a wider front hub without introducing unsafe bending stresses into the forks, and greatly facilitates the addition of the front wheel drive train of the invention to any bicycle. The invention also encompasses a steering assembly kit that converts a conventional bicycle to the dual drive bicycle of the invention by adding the front wheel drive train of the invention to a conventional bicycle.
DUAL DRIVE BICYCLE
2015-12-24
Patent
Electronic Resource
English
BICYCLE DRIVE UNIT AND BICYCLE DRIVE SYSTEM INCLUDING BICYCLE DRIVE UNIT
European Patent Office | 2018
|Bicycle drive unit and bicycle drive system including bicycle drive unit
European Patent Office | 2021
|