Tracked bicycle

A human powered vehicle apparatus having both wheeled and tracked configurations, comprising:

• a) a frame having a seat and a rear fork;
• b) a front fork and a handle bar, attached to one another and pivotally coupled to the frame;
• c) a drive assembly, coupled to the frame, including:
• i) a peddle gear, rotatably coupled to the frame, having peddles to turn the peddle gear;
• and
• ii) a drive chain, movably disposed around the peddle gear;
• d) a rear wheel, removably attachable to the rear fork of the frame, and operatively attachable to the drive chain;
• e) a front wheel, removably attachable to the front fork of the frame;
• f) a track assembly, removably attachable to the frame, including:
• i) a drive wheel, removably attachable to the rear fork of the frame, having a drive gear operatively attachable to the drive chain;
• ii) a bogie wheel, located rearward of, and spaced apart from, the drive wheel and movably attachable to the frame;
• iii) a continuous track, movably disposed around the drive and bogie wheels;
• and
• iv) a pair of flexible and resilient arms, coupled to and between the frame and the bogie wheel on opposite sides thereof, configured to bias the bogie wheel and track towards a riding surface;
• and
• g) a ski, removably attachable to the front fork;
• and
• h) the apparatus having at least two configurations, including:
• i) a wheeled configuration in which the rear wheel is coupled to the rear fork and in which the track assembly is uncoupled from the frame;
• and
• ii) a tracked configuration in which the track assembly is coupled to the frame and the rear wheel is uncoupled from the rear fork.

A kit for converting a standard bicycle into a tracked cycle, the kit comprising:

• a) a drive wheel configured to be coupled to a frame of the standard bicycle, and configured to be operatively coupled to a drive of the standard bicycle;
• b) a flexible and resilient arm having a first end configured to be coupled to the frame of the standard bicycle, and a second end configured to extend rearward from the frame;
• c) a bogie wheel, coupled to the second end of the arm and located rearward of the drive wheel;
• and
• d) a continuous track, movably disposed around the drive and bogie wheels;
• e) the arm being formed of a flexible and resilient material configured to bias the bogie wheel and track towards a riding surface;
• and
• f) a frame bracket, attached to the arm opposite the bogie wheel, configured to attach the arm to the frame.

A kit for converting a standard bicycle into a tracked cycle, the kit comprising:

• a) a drive wheel configured to be coupled to a frame of the standard bicycle, and configured to be operatively coupled to a drive of the standard bicycle;
• b) a flexible and resilient arm having a first end configured to be coupled to the frame of the standard bicycle, and a second end configured to extend rearward from the frame;
• c) a bogie wheel, coupled to the second end of the arm and located rearward of the drive wheel;
• and
• d) a continuous track, movably disposed around the drive and bogie wheels;
• e) the arm being formed of a flexible and resilient material configured to bias the bogie wheel and track towards a riding surface;
• and
• f) a tension mechanism, coupled to the bogie wheel, to tension the track, including:
• i) a bogie bracket, attached to the flexible arm;
• ii) a pivot bar having a first end pivotally attached to the bogie bracket, and a second end coupled to the bogie wheel, the pivot bar being pivotal towards and away from the frame;
• and
• iii) the pivot bar being biased away from the frame to tension the track.

A human powered vehicle apparatus having both wheeled and tracked configurations, comprising:

• a) a frame having a seat and a rear fork;
• b) a front fork and a handle bar, attached to one another and pivotally coupled to the frame;
• c) a drive assembly, coupled to the frame, including:
• i) a peddle gear, rotatably coupled to the frame, having peddles to turn the peddle gear;
• and
• ii) a drive chain, movably disposed around the peddle gear;
• d) a rear wheel, removably attachable to the rear fork of the frame, and operatively attachable to the drive chain;
• e) a front wheel, removably attachable to the front fork of the frame;
• f) a track assembly, removably attachable to the frame, including:
• i) a drive wheel, removably attachable to the rear fork of the frame, having a drive gear operatively attachable to the drive chain;
• ii) a bogie wheel, located rearward of, and spaced apart from, the drive wheel and movably attachable to the frame;
• and
• iii) a continuous track, movably disposed around the drive and bogie wheels;
• and
• g) a ski, removably attachable to the front fork;
• and
• h) the apparatus having at least two configurations, including:
• i) a wheeled configuration in which the rear wheel is coupled to the rear fork and in which the track assembly is uncoupled from the frame;
• and
• ii) a tracked configuration in which the track assembly is coupled to the frame and the rear wheel is uncoupled from the rear fork.