Bicycle wheel frame for electrical bike, has energy source that is provided in down tube and top tube and is inserted in apertures in head tube

摘要

The wheel frame has a down tube (3), a top tube (4), a head tube (2), a saddle tube (5), chain props, seat braces and a bottom bracket. An energy source is provided in the down tube and top tube and is inserted in apertures (1) in the head tube. The resilient portions of polystyrene balls are fixed on the energy source by thin granule.