A vehicle with pedals (100) comprising a saddle (1), a front wheel (2), a supporting body (6) or a frame, a pair of pedals (5, 5′) and a pair of rear wheels (3, 3′). An oscillating mechanism (4) between the supporting body (6) of said front wheel (2) and said rear wheels (3,3′) realizes the equilibrium of the vehicle with pedals (100) and allowing the inclination of the wheels (3, 3′), consequently determining the steering of the vehicle with pedals (100).

A vehicle with pedals (100) comprising a saddle (1), a front wheel (2), a supporting body (6) or a frame, a pair of pedals (5, 5′) and a pair of rear wheels (3, 3′). An oscillating mechanism (4) between the supporting body (6) of said front wheel (2) and said rear wheels (3,3′) realizes the equilibrium of the vehicle with pedals (100) and allowing the inclination of the wheels (3, 3′), consequently determining the steering of the vehicle with pedals (100).

A plurality of main frame members that are commonly usable for a plurality of types of straddled vehicles are fabricated. Left and light pivot shaft supporting portions are provided in each main frame member. The left and right pivot shaft supporting portions include left and right hole formable portions in which left and right pivot holes are formable and which have areas larger than an area of a head portion of a pivot shaft, respectively. One of the pivot shaft supporting portions includes a rotation restricting portion that restricts rotation of the head portion of the pivot shaft inserted into the pivot hole. The pivot holes are respectively formed at predetermined positions at pivot shaft supporting portions of each main frame member, and the predetermined positions are different in accordance with a type of a vehicle for which each main frame member is to be used.

A tricycle may be operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle. In both such first and second modes, the frame of the tricycle is configured to rotatably support the rear wheels and configured to support the head tube at a distance from the rear wheels such that a distance between the head tube and rear wheels need not necessarily be changed even when the front wheel axis location is changed from one mode to another.

A tricycle may be operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle. In both such first and second modes, the frame of the tricycle is configured to rotatably support the rear wheels and configured to support the head tube at a distance from the rear wheels such that a distance between the head tube and rear wheels need not necessarily be changed even when the front wheel axis location is changed from one mode to another.

A vehicle propellable by a human comprising a front assembly having a front wheel and a pair of hand pedals connect thereto; a rear assembly having a first rear wheel and a second rear wheel rotatably connected thereto; a chest rest located between the front assembly and the rear assembly, the chest rest configured to support the chest of a rider lying forward on the vehicle; and a first foot support structure operatively coupled to rotate the first rear wheel, and a second foot support operatively coupled to rotate the second rear wheel wherein the first rear wheel and second rear wheel are independently rotated by opposite feet of a rider when said feet are within said first and second foot support, respectively.

A vehicle propellable by a human comprising a front assembly having a front wheel and a pair of hand pedals connect thereto; a rear assembly having a first rear wheel and a second rear wheel rotatably connected thereto; a chest rest located between the front assembly and the rear assembly, the chest rest configured to support the chest of a rider lying forward on the vehicle; and a first foot support structure operatively coupled to rotate the first rear wheel, and a second foot support operatively coupled to rotate the second rear wheel wherein the first rear wheel and second rear wheel are independently rotated by opposite feet of a rider when said feet are within said first and second foot support, respectively.

A stroller is provided with the ability to removably couple and decouple a seat from the stroller as needed. The stroller can include a stroller frame. The stroller can also include one or more front wheels attached to the stroller frame and one or more rear wheels attached to the stroller frame. The stroller can also include a first seat coupled to the stroller frame. The stroller can include first and second seat attachment housings. Each of the seat attachment housings can include a cavity for receiving a corresponding one of the first and second seat attachment adapters. Each of the seat attachment housings can also include a door cover to prevent access to the respective cavity when not in use. The seat attachment adapters can be coupled to the respective seat attachment housings and a second seat can be coupled to the seat attachment adapters.

A stroller is provided with the ability to removably couple and decouple a seat from the stroller as needed. The stroller can include a stroller frame. The stroller can also include one or more front wheels attached to the stroller frame and one or more rear wheels attached to the stroller frame. The stroller can also include a first seat coupled to the stroller frame. The stroller can include first and second seat attachment housings. Each of the seat attachment housings can include a cavity for receiving a corresponding one of the first and second seat attachment adapters. Each of the seat attachment housings can also include a door cover to prevent access to the respective cavity when not in use. The seat attachment adapters can be coupled to the respective seat attachment housings and a second seat can be coupled to the seat attachment adapters.

A seat back/trunk extension device having a mechanism for attaching to the frame of a Can-Am Spyder F3. The device attaches to the frame and creates a platform at the rear of the frame, positioning the trunk in a rear location. The device has primarily three pieces that extends towards the rear and supports the trunk. The device has an attachment that extends the passenger seat cushion, to provide additional room for a passenger.