Abstract: Frame for a bicycle type apparatus such as a bicycle type exerciser or a bicycle, having a closed, rectangular box beam cross section reach tube oriented with the major axis of the cross section in a vertical plane secured between a handlebar head tube and a seat mast. The reach tube has an angular configuration including a rear horizontal section extending along the chain guard, and an upwardly and forwardly extending diagonal section.

Abstract: Frame for a bicycle type apparatus such as a bicycle type exerciser or a bicycle, having a closed, rectangular box beam cross section reach tube oriented with the major axis of the cross section in a vertical plane secured between a handlebar head tube and a seat mast. The reach tube has an angular configuration including a rear horizontal section extending along the chain guard, and an upwardly and forwardly extending diagonal section.

Abstract: In a bicycle-type ergometric exerciser, a brake flywheel comprising two complementally dished stamped metal discs with central hub-receiving apertures and secured together by rivets equally circumferentially spaced around an intermediate portion, with lateral marginal portions providing outer brake surfaces, and opposed inwardly directed peripheral flanges with extruded rubber strips having flange-receiving slots mounted thereon in axially lateral abutting relation to provide a relatively soft outer protective peripheral tire and inner peripheral seats for split steel rings disposed interiorly for inertial weighting.