US Patent 10988209 Bicycle control system

A bicycle control system includes a housing having an upper mounting surface and housing a brake actuation system. A lever is pivotally coupled to the housing about an axis and is operably coupled to the brake actuation system. An electronic module includes a housing releasably coupled to the upper mounting surface. The housing sealingly encloses at least one electronic component. The lever may be pivotally coupled to the housing about both a shift axis and a brake axis, wherein the shift axis and the brake axis being non-orthogonal. A bicycle control kit includes different first and second electronic modules.