A front fork includes a spring that is provided between a first cylindrical body and a second cylindrical body and applies a force in a direction to separate the first cylindrical body and the second cylindrical body, and a spring seat portion that is provided on an outer peripheral surface of the first cylindrical body and receives a first end of the spring. The spring seat portion includes a fixing portion that is fixed to the first cylindrical body, a spring seat body that is made of metal and receives the spring, and a third cylindrical body that is disposed between an inner peripheral surface of the spring seat body and the outer peripheral surface of the first cylindrical body and reduces a frictional force when the spring seat body rotates.

A front fork includes a spring that is provided between a first cylindrical body and a second cylindrical body and applies a force in a direction to separate the first cylindrical body and the second cylindrical body, and a spring seat portion that is provided on an outer peripheral surface of the first cylindrical body and receives a first end of the spring. The spring seat portion includes a fixing portion that is fixed to the first cylindrical body, a spring seat body that is made of metal and receives the spring, and a third cylindrical body that is disposed between an inner peripheral surface of the spring seat body and the outer peripheral surface of the first cylindrical body and reduces a frictional force when the spring seat body rotates.

An adjustable handlebar system for steerable vehicles is disclosed, enabling selective angular positioning between two handlebar segments via a mechanically interlocking interface. The system includes complementary gear teeth machined into mating segments and a central locking fastener that secures the selected angle under operational load. This adjustability enhances ergonomic alignment, reduces rider fatigue, and improves handling precision. The system is modular and applicable to motorcycles, bicycles, ATVs, fitness equipment, and other steerable devices requiring user-specific control customization.

An adjustable handlebar system for steerable vehicles is disclosed, enabling selective angular positioning between two handlebar segments via a mechanically interlocking interface. The system includes complementary gear teeth machined into mating segments and a central locking fastener that secures the selected angle under operational load. This adjustability enhances ergonomic alignment, reduces rider fatigue, and improves handling precision. The system is modular and applicable to motorcycles, bicycles, ATVs, fitness equipment, and other steerable devices requiring user-specific control customization.

An operating device includes a base and an operating member. The operating member is pivotally coupled to the base about a pivot axis. The base includes a base body and a cover. The cover includes a cover body and a buffering part. The cover body includes an upper outer surface, a first lateral outer surface, a second lateral outer surface, a first shoulder, and a second shoulder. The first shoulder is provided between the upper outer surface and the first lateral outer surface. The second shoulder is provided between the upper outer surface and the second lateral outer surface. The buffering part is in contact with the base body when the cover is deformed by force applied from a user's hand.

An operating device includes a base and an operating member. The operating member is pivotally coupled to the base about a pivot axis. The base includes a base body and a cover. The cover includes a cover body and a buffering part. The cover body includes an upper outer surface, a first lateral outer surface, a second lateral outer surface, a first shoulder, and a second shoulder. The first shoulder is provided between the upper outer surface and the first lateral outer surface. The second shoulder is provided between the upper outer surface and the second lateral outer surface. The buffering part is in contact with the base body when the cover is deformed by force applied from a user's hand.

A straddled vehicle with electric power steering (EPS), including: a steering mechanism for mechanically transmitting manipulation of a handlebar to a front steerable wheel; and an EPS actuator applying an auxiliary steering force to the front steerable wheel. The EPS actuator has a motor and a transmission gear part. The motor includes: a rotor shaft rotatable about an axis line thereof, a rotor gear part meshed with the transmission gear part, and upward and downward dynamic thrust load attenuation elastomer members for attenuating upward and download dynamic thrust loads, respectively. The upward and downward dynamic thrust load attenuation elastomer members compress upward and downward in response to the upward and download dynamic thrust loads, respectively, with maximum compression amounts thereof respectively less than upward and downward movement allowances, and a sum thereof shorter than the rotor gear part or the transmission gear part, whichever is longer.

A straddled vehicle with electric power steering (EPS), including: a steering mechanism for mechanically transmitting manipulation of a handlebar to a front steerable wheel; and an EPS actuator applying an auxiliary steering force to the front steerable wheel. The EPS actuator has a motor and a transmission gear part. The motor includes: a rotor shaft rotatable about an axis line thereof, a rotor gear part meshed with the transmission gear part, and upward and downward dynamic thrust load attenuation elastomer members for attenuating upward and download dynamic thrust loads, respectively. The upward and downward dynamic thrust load attenuation elastomer members compress upward and downward in response to the upward and download dynamic thrust loads, respectively, with maximum compression amounts thereof respectively less than upward and downward movement allowances, and a sum thereof shorter than the rotor gear part or the transmission gear part, whichever is longer.