A bicycle frame unit for constructing a bicycle frame has two half casing parts and an annular supporting element. The annular supporting element is connected between the half casing parts and has a connecting hole for matching an outer contour of an external post. A gap is formed between the half casing parts and the annular supporting element, and a connecting material fills the gap and connects the half casing parts and the annular supporting element. A manufacturing method of the bicycle frame unit is also provided.

A bicycle frame unit for constructing a bicycle frame has two half casing parts and an annular supporting element. The annular supporting element is connected between the half casing parts and has a connecting hole for matching an outer contour of an external post. A gap is formed between the half casing parts and the annular supporting element, and a connecting material fills the gap and connects the half casing parts and the annular supporting element. A manufacturing method of the bicycle frame unit is also provided.

A drive apparatus for a track of a snowmobile includes a drive shaft and a drive sprocket coupled to the drive shaft. The drive sprocket includes a first drive member having a plurality of teeth configured to engage drive lugs on an inner surface of the track and a second drive member having plurality of teeth configured to enter the openings formed in the track upon rotation of the drive shaft. First and second connecting webs extend between the teeth of the first and second drive members, respectively. The first and second connecting webs each have first and second side angled surfaces aligned an angle of less than 180 relative to each other to minimize snow build up on the first and second drive members, respectively.

A drive apparatus for a track of a snowmobile includes a drive shaft and a drive sprocket coupled to the drive shaft. The drive sprocket includes a first drive member having a plurality of teeth configured to engage drive lugs on an inner surface of the track and a second drive member having plurality of teeth configured to enter the openings formed in the track upon rotation of the drive shaft. First and second connecting webs extend between the teeth of the first and second drive members, respectively. The first and second connecting webs each have first and second side angled surfaces aligned an angle of less than 180 relative to each other to minimize snow build up on the first and second drive members, respectively.

An added platform that attaches to a Scooter for purposes of ergonomics, maneuverability, security, and comfort. The device utilizes a clamping system for the purpose of attaching an ergo stability platform to an existing E-Scooter or standard Scooter. The Scooter attachment is configured with wheel(s) and a clamping mechanism, either removable or affixed, that is positioned and configured on the Scooter to enhance security for the rider who might need these amenities. The Scooter attachment may come in any geometric design and is scaled larger than the substrate of the Scooter. The Scooter attachment may be attached to Scooter via glue, weld, sonic welded, or bolt with any clamping device. The Scooter attachment is configured with a guide slot(s) on the platform to receive the seat base. The mechanism that attaches these two embodiments together, may be clamped, bolted, glued, or welded. The Scooter attachment is also configured to include wheel(s) attached thereto. The wheels are to hold upright the Scooter and Rider.

The present invention is a novel bicycle frame arrangement that overcomes the limitations of traditional frame construction methods. The invention comprises a single machined frame part that contains at least two complete interfaces configured to accept further bike components, namely a fork assembly, a seatpost assembly, and a crankset assembly, thereby enabling the creation of a frame with improved strength, stiffness, and weight ratios. The remaining frame parts are connected to the first machined component to form one or more substantially hollow portions of the frame, allowing for a robust and efficient structure that can be manufactured from high-strength alloys.

The present invention is a novel bicycle frame arrangement that overcomes the limitations of traditional frame construction methods. The invention comprises a single machined frame part that contains at least two complete interfaces configured to accept further bike components, namely a fork assembly, a seatpost assembly, and a crankset assembly, thereby enabling the creation of a frame with improved strength, stiffness, and weight ratios. The remaining frame parts are connected to the first machined component to form one or more substantially hollow portions of the frame, allowing for a robust and efficient structure that can be manufactured from high-strength alloys.