The present disclosure relates to a chain ring having teeth positioned in one of three lateral positions. At least one tooth may be placed in each lateral position. At least half the teeth may be positioned in a middle lateral position. The teeth in the first and third lateral positions may apply opposing lateral forces to a bicycle drive chain.

The present disclosure relates to a chain ring having teeth positioned in one of three lateral positions. At least one tooth may be placed in each lateral position. At least half the teeth may be positioned in a middle lateral position. The teeth in the first and third lateral positions may apply opposing lateral forces to a bicycle drive chain.

A bicycle chainring for engagement with a drive chain includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth. At least some of the second group of teeth are arranged alternatingly and adjacently between the first group of teeth, and at least some of the first group of teeth are asymmetrically wider than each of the second group of teeth.

A bicycle chainring for engagement with a drive chain includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth. At least some of the second group of teeth are arranged alternatingly and adjacently between the first group of teeth, and at least some of the first group of teeth are asymmetrically wider than each of the second group of teeth.

A bicycle chainring includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth, and at least some of the second group of teeth arranged alternatingly and adjacently between the first group of teeth, wherein the center of a top land of at least some of the first and second groups of teeth are offset from a plane in a direction toward one of the inboard and outboard sides of the chainring.

A bicycle chainring includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth, and at least some of the second group of teeth arranged alternatingly and adjacently between the first group of teeth, wherein the center of a top land of at least some of the first and second groups of teeth are offset from a plane in a direction toward one of the inboard and outboard sides of the chainring.

The present invention provides a bicycle comprising a motor mounted to a motor mount of the bicycle frame. The motor mount includes a down tube mount coupled to a down tube, a chainstay mount coupled to a chainstay, and a side brace secured to the down tube mount and wrapping around one side of the motor to the chainstay mount. Preferably, when viewed from the side, the side brace extends directly from the down tube mount to the chainstay mount. Preferably, the motor mount further comprises a lower support secured to the down tube mount and wrapped around a bottom of the motor to the chainstay mount. The motor mount can further include an upper support connecting the seat tube mount to the down tube mount. This upper support can include an upper flange secured to the motor.

A toothed belt includes an internal toothing and an external toothing; wherein tooth crests of the internal toothing comprise a rounded region and wherein tooth crests of the external toothing comprise a rounded region, wherein the tooth crests of the internal toothing are arranged radially opposite the tooth bases of the external toothing so that the toothed belt comprises an offset gap arrangement in which the teeth of the internal toothing and the external toothing are offset from each other, and wherein the toothed belt comprises a smooth central bearing region.

An inner link plate for a bicycle chain is provided. The inner link plate may have a longitudinal centerline defining a longitudinal direction and comprising a first inner-link end portion including a first inner-link opening having a first inner-link center axis, a second inner-link end portion including a second inner-link opening having a second inner-link center axis parallel to the first inner-link center axis, and an inner-link intermediate portion interconnecting the first inner-link end portion and the second inner-link end portion. The first inner-link end portion may have an extended edge portion extending to be away from the second inner-link end portion in the longitudinal direction.

An inner link plate for a bicycle chain is provided. The inner link plate may have a longitudinal centerline defining a longitudinal direction and comprising a first inner-link end portion including a first inner-link opening having a first inner-link center axis, a second inner-link end portion including a second inner-link opening having a second inner-link center axis parallel to the first inner-link center axis, and an inner-link intermediate portion interconnecting the first inner-link end portion and the second inner-link end portion. The first inner-link end portion may have an extended edge portion extending to be away from the second inner-link end portion in the longitudinal direction.