Abstract: An electric bicycle drive unit mounting arrangement for attaching an electric drive unit at a drive receptacle of a bicycle frame is provided. The bicycle frame has a fixed bearing fastening frame leg and a parallel loose bearing frame leg. A drive unit housing has a fixed bearing housing flange and a parallel loose bearing housing flange. The fixed bearing housing flange is frictionally attached directly against the fixed bearing frame leg. A loose bearing fastening element attaches the loose bearing housing flange to the loose bearing frame leg. The loose bearing fastening element is a loose bearing threaded bolt having a cylindrical bolt head seated in a loose bearing cylinder bore of the loose bearing frame leg without radial play, and has a threaded portion with an external thread screwed in a corresponding internal thread to the loose bearing frame leg or to one of the housing flanges.

Abstract: A pedelec bottom bracket drive unit includes a rigid drive housing and a tolerance compensation sheet-metal spring which is arranged to stand substantially in a vertical plane. The tolerance compensation sheet-metal spring includes at least one fixing point at a housing side and at least one mounting point for fastening the tolerance-compensating sheet-metal spring to a pedelec-frame-side drive mount. The at least one fixing point has a fixing point traverse axis. The tolerance compensation sheet-metal spring is fixed to the rigid drive housing at the at least one fixing point at the housing side. The at least one mounting point has a mounting point traverse axis. The at least one mounting point is arranged offset with respect to a next adjacent fixing point of the at least one fixing point as viewed from the fixing point traverse axis and from the mounting point traverse axis.

Abstract: An electric bicycle drive unit mounting arrangement (50) by which a mid-motor electric drive unit (30) is floatingly attached to a drive receptacle (21) of a bicycle frame (20), wherein the drive receptacle (21) comprises two mutually parallel frame-fixed and vertical frame flanges (211, 212), wherein a drive unit housing (34) comprises two parallel and vertical housing flanges (41, 42), wherein one housing flange (41) is attached to one frame flange (211) and the other housing flange (42) is attached to the other frame flange (212), defining a flange pairing, respectively, and wherein both flange pairings comprise respectively at least one rubber mount (80) by means of which the frame flange (211, 212) is connected to the associated housing flange (41, 42) in a floating and rubber-elastic manner, so that the housing flanges (41, 42) do not bear directly against the corresponding frame flanges (211, 212) in each case, but are spaced apart from the corresponding frame flanges (211, 212) by a spacing gap (58) w

Abstract: A pedelec bottom bracket drive unit includes a rigid drive housing and a tolerance compensation sheet-metal spring which is arranged to stand substantially in a vertical plane. The tolerance compensation sheet-metal spring includes at least one fixing point at a housing side and at least one mounting point for fastening the tolerance-compensating sheet-metal spring to a pedelec-frame-side drive mount. The at least one fixing point has a fixing point traverse axis. The tolerance compensation sheet-metal spring is fixed to the rigid drive housing at the at least one fixing point at the housing side. The at least one mounting point has a mounting point traverse axis. The at least one mounting point is arranged offset with respect to a next adjacent fixing point of the at least one fixing point as viewed from the fixing point traverse axis and from the mounting point traverse axis.