Patent ID: 8960702
Filing Date: 2015-02-24
Classification: B62J,B62K,B62M,Y10T

Abstract:
1. A frame for an electric bicycle, comprising: a head tube; a top tube extending generally rearward from the head tube; a down tube extending generally downward and rearward from the head tube; a seat tube that intersects the top tube and that intersects the down tube at a bottom bracket region, wherein the bottom bracket region includes a bottom bracket shell having an aperture disposed substantially opposite the down tube to allow a battery pack to be inserted into the down tube; a pair of seat stays extending generally downward and rearward from an upper portion of the seat tube; and a pair of chain stays extending generally rearward from the bottom bracket region to intersect the seat stays; a removable bottom bracket insert that fits within the bottom bracket shell and includes a hollow bore shaped to receive a bottom bracket.