A motorcycle keyless controller arrangement structure is provided. A motorcycle includes a vehicle frame unit, a vehicle body cover unit, and a steering mechanism mounted on the vehicle frame unit. The steering mechanism includes a steering handle bar and a front fork assembly. a front cover portion of the vehicle body cover unit is arranged on a front side of the front fork assembly. A keyless controller is arranged on a rear side of the front fork assembly. The keyless controller is in electrical connection with a long-range antenna and a short-range antenna. The long-range antenna is arranged inside the front cover portion. The short-range antenna is arranged inside an upper vehicle-body cover portion of the vehicle body cover unit. As such, the motorcycle is kept in a condition of being ready to enter a traveling state.

Disclosed is a recumbent bicycle configuration, structure and methods which allow effective hand power input using only components otherwise required to pedal and steer. Force and work based hand power methods are used. The effect is comparable to standing and pedaling a conventional bicycle. The configuration has front wheel drive and steering. The crankset is fork mounted on or near the steering axis. The fork has a double triangulated torque tube structure which is rigid from the hand grips to the crankshaft endpoints to torsional hand and foot forces in opposition. Pedal forces on steering are controlled by a hand over foot leverage ratio, and by use of trail, which is increasingly effective with speed. A fork mounted fairing can be used. For stability, the fairing aerodynamic center of presented area is ahead of the steering axis. Hand, foot and selective braking inputs are used for enhanced control.

Disclosed is a recumbent bicycle configuration, structure and methods which allow effective hand power input using only components otherwise required to pedal and steer. Force and work based hand power methods are used. The effect is comparable to standing and pedaling a conventional bicycle. The configuration has front wheel drive and steering. The crankset is fork mounted on or near the steering axis. The fork has a double triangulated torque tube structure which is rigid from the hand grips to the crankshaft endpoints to torsional hand and foot forces in opposition. Pedal forces on steering are controlled by a hand over foot leverage ratio, and by use of trail, which is increasingly effective with speed. A fork mounted fairing can be used. For stability, the fairing aerodynamic center of presented area is ahead of the steering axis. Hand, foot and selective braking inputs are used for enhanced control.

Embodiments disclosed herein include an electric assist bicycle adapted for a both personal and public use, and subcomponents of the bicycle. The electric assist bicycle can include a hollow frame with one or more cables routed within the hollow frame. The hollow frame can be configured with an internal battery compartment. The electric assist bicycle can further include a modular electronic locking system.

Embodiments disclosed herein include an electric assist bicycle adapted for a both personal and public use, and subcomponents of the bicycle. The electric assist bicycle can include a hollow frame with one or more cables routed within the hollow frame. The hollow frame can be configured with an internal battery compartment. The electric assist bicycle can further include a modular electronic locking system.

A sealing unit for a fork tube provided with a lining and a stem disposed slidably inside the lining through an inlet opening. The sealing unit being mounted in the inlet opening to be slidably engaged by the stem and provided with an annular stiffening insert and a flexible annular body provided with two dust-cover lips arranged in sliding contact with the stem, and with a cylindrical static sealing element forcibly and elastically locked inside the inlet opening. The cylindrical static sealing element being radially delimited outwardly by a cylindrical assembly surface having a respective axis (X) of symmetry, which is eccentric with respect to the axis (Y) of symmetry of the first dust-cover lip to ensure a uniform sliding contact of at least the first dust-cover lip on the stem.

A sealing unit for a fork tube provided with a lining and a stem disposed slidably inside the lining through an inlet opening. The sealing unit being mounted in the inlet opening to be slidably engaged by the stem and provided with an annular stiffening insert and a flexible annular body provided with two dust-cover lips arranged in sliding contact with the stem, and with a cylindrical static sealing element forcibly and elastically locked inside the inlet opening. The cylindrical static sealing element being radially delimited outwardly by a cylindrical assembly surface having a respective axis (X) of symmetry, which is eccentric with respect to the axis (Y) of symmetry of the first dust-cover lip to ensure a uniform sliding contact of at least the first dust-cover lip on the stem.

A crown assembly including at least one crown fluid chamber having a first volume, and a fork side opening for fluidly coupling the at least one crown fluid chamber with at least one fluid spring chamber of a fork leg to provide an additional amount of available fluid volume to the at least one fluid spring chamber.

A crown assembly including at least one crown fluid chamber having a first volume, and a fork side opening for fluidly coupling the at least one crown fluid chamber with at least one fluid spring chamber of a fork leg to provide an additional amount of available fluid volume to the at least one fluid spring chamber.

A bicycle subassembly includes a bicycle component having a socket and a tube having a first tube portion received in the socket and a second tube portion extending outwardly from the socket. The tube includes a cold worked region spanning at least a portion of the first tube portion and at least a first portion of the second tube portion. The tube includes a non-cold worked region spanning at least a second portion of the second tube portion. Methods for making the tube and subassembly are also provided.