A water bottle holder assembly includes a board and a link extending from the board. The board includes two slots defined axially therethrough. The link includes a connection end which has a first toothed face. Two clamp units are connected to the board, and each clamp unit includes two blocks. Each of the blocks includes a passage through which a first bolt extends, and the first bolt extends through the slot and is connected with a nut. The two blocks are pivotably connected to each other at one end so as to clamp the seat rail between the two blocks. A support unit includes a plate with an extension extending laterally from the plate. A water bottle holder is connected to the plate. The extension includes an engaging part which has a second toothed face adjustably engaged with the first toothed face so that the holder is angularly adjustable.

A water bottle holder assembly includes a board and a link extending from the board. The board includes two slots defined axially therethrough. The link includes a connection end which has a first toothed face. Two clamp units are connected to the board, and each clamp unit includes two blocks. Each of the blocks includes a passage through which a first bolt extends, and the first bolt extends through the slot and is connected with a nut. The two blocks are pivotably connected to each other at one end so as to clamp the seat rail between the two blocks. A support unit includes a plate with an extension extending laterally from the plate. A water bottle holder is connected to the plate. The extension includes an engaging part which has a second toothed face adjustably engaged with the first toothed face so that the holder is angularly adjustable.

An activity tracker includes a device that includes a sensor component, a radio, a housing, and a removable portion. The sensor component is configured to obtain bicycle route information based on one or more sensors. The radio is configured to wirelessly communicate the bicycle route information to a remote computing device. The housing includes at least a portion of the sensor component and the radio. The removable portion includes a battery. The removable portion and the housing, when coupled, create a watertight seal to protect electronic components of the device.

An activity tracker includes a device that includes a sensor component, a radio, a housing, and a removable portion. The sensor component is configured to obtain bicycle route information based on one or more sensors. The radio is configured to wirelessly communicate the bicycle route information to a remote computing device. The housing includes at least a portion of the sensor component and the radio. The removable portion includes a battery. The removable portion and the housing, when coupled, create a watertight seal to protect electronic components of the device.

A device for attaching a bottle to prevent accidental release during use. A base of the device includes a spine support connecting a lower collar and an upper collar. A plurality of pins protrude from an inner surface of the lower collar. The pins can be positioned equidistant from one another. A bottle includes a plurality of channels extending from a bottom portion of the bottle. The channels can have a greater angled lower portion extending into a lesser angled end portion. During use, the bottle is rotated, if needed, up to a quarter of a turn to receive the pins extending from the lower collar into the lower portion of respective channels of the bottle. Once pins meet channels, a slight clockwise turn pulls the bottle to a bottom of the base and secures the bottle to the base as the pins meet the ends of the respective channels. The bottle can be released from the pins with a slight counter-clockwise turn. Alternatively, the base includes a lower support which is received in a corresponding shape of a female receptacle formed in the bottle. The lower support can have a mushroom screw shape. The bottle can be twisted for locking the lower support to the bottle.

A device for attaching a bottle to prevent accidental release during use. A base of the device includes a spine support connecting a lower collar and an upper collar. A plurality of pins protrude from an inner surface of the lower collar. The pins can be positioned equidistant from one another. A bottle includes a plurality of channels extending from a bottom portion of the bottle. The channels can have a greater angled lower portion extending into a lesser angled end portion. During use, the bottle is rotated, if needed, up to a quarter of a turn to receive the pins extending from the lower collar into the lower portion of respective channels of the bottle. Once pins meet channels, a slight clockwise turn pulls the bottle to a bottom of the base and secures the bottle to the base as the pins meet the ends of the respective channels. The bottle can be released from the pins with a slight counter-clockwise turn. Alternatively, the base includes a lower support which is received in a corresponding shape of a female receptacle formed in the bottle. The lower support can have a mushroom screw shape. The bottle can be twisted for locking the lower support to the bottle.

A bicycle component includes a platform having a mounting arrangement adapted to be mounted to a bicycle. A solar cell array is arranged on the platform. A battery charging unit also is arranged on the platform and is operatively connected to the solar cell array.

A motorized bicycle training wheel system for training people to ride a bike without pedaling includes a pair of motorized training wheels each comprising an attachment bracket, a motor, and a wheel. The attachment bracket has an attachment aperture to receive an axle of a bicycle. The motor has a motor housing coupled to a lower portion of the attachment bracket. The wheel is coupled to a drive shaft of the motor. A battery is in operational communication with the motor of each of the pair of motorized training wheels and coupled to a frame of the bicycle. A throttle is in operational communication with the battery and the motor of each of the pair of motorized training wheels and coupled to a handlebar of the bicycle.

This document describes aerodynamic water bottles for bicycles. In one aspect, an aerodynamic water bottle includes a curved front portion that includes an attachment mechanism. The attachment mechanism includes a first fastening member and a second fastening member opposite the first fastening member. At least one of the first fastening member or the second fastening member is configured to pivot away from the other of the first fastening member or the second fastening member to place the attachment mechanism in an open position. When in a closed position, the attachment mechanism includes an opening for a seat post of a bicycle to extend through. The opening is formed by a first curved surface of the first fastening member and a second curved surface of the second fastening member. A back portion includes a hollow interior vessel for storing a liquid, the back portion further comprising a spout.

This document describes aerodynamic water bottles for bicycles. In one aspect, an aerodynamic water bottle includes a curved front portion that includes an attachment mechanism. The attachment mechanism includes a first fastening member and a second fastening member opposite the first fastening member. At least one of the first fastening member or the second fastening member is configured to pivot away from the other of the first fastening member or the second fastening member to place the attachment mechanism in an open position. When in a closed position, the attachment mechanism includes an opening for a seat post of a bicycle to extend through. The opening is formed by a first curved surface of the first fastening member and a second curved surface of the second fastening member. A back portion includes a hollow interior vessel for storing a liquid, the back portion further comprising a spout.