A non-uniform steerer tube. The non-uniform steerer tubes includes an axis-symmetric outer surface and a non axis-symmetric inner surface. The axis-symmetric outer surface and the non axis-symmetric inner surface defining a wall thickness therebetween. The wall thickness varying along an axial length of the non-uniform steerer tube.

A non-uniform steerer tube. The non-uniform steerer tubes includes an axis-symmetric outer surface and a non axis-symmetric inner surface. The axis-symmetric outer surface and the non axis-symmetric inner surface defining a wall thickness therebetween. The wall thickness varying along an axial length of the non-uniform steerer tube.

An adjustable axle retaining structure is disclosed. The structure includes an axle receiving feature on a first leg of a fork assembly and a retaining sleeve within a clamping member on a second leg of the fork assembly. An axle is inserted through the clamping member, the wheel hub and coupled with the axle receiving feature. A component of the axle is tightened thereby moving the retaining sleeve partially out of the clamping member and toward the wheel hub until the wheel hub is in contact with both the retaining sleeve and the axle receiving feature, wherein the moving of the retaining sleeve allows the axle to radially couple the wheel hub with the fork assembly without modifying a preestablished geometry of the fork assembly.

A method of modifying the rake angle on a motorcycle having a double wishbone front suspension. The motorcycle has a tubular steering housing connected to a non-telescoping fork assembly by a straight body steering stem. The method includes the step of replacing the straight body steering stem with a canted body steering stem. The canted body steering stem includes (i) a primary section having a steering axis corresponding to a steering axis of the motorcycle; and (ii) a secondary section having a cant axis which varies from the steering axis by between 1° and 16°.

A method of modifying the rake angle on a motorcycle having a double wishbone front suspension. The motorcycle has a tubular steering housing connected to a non-telescoping fork assembly by a straight body steering stem. The method includes the step of replacing the straight body steering stem with a canted body steering stem. The canted body steering stem includes (i) a primary section having a steering axis corresponding to a steering axis of the motorcycle; and (ii) a secondary section having a cant axis which varies from the steering axis by between 1° and 16°.

A saddle riding type vehicle having a front fork that supports a front wheel, a head pipe that rotationally movably supports the front fork, a down frame extending downward from the head pipe, a front wheel brake supported by the front fork, to brake the front wheel, a braking force adjustment device that controls braking force of the front wheel brake, and output piping that connects the braking force adjustment device and the front wheel brake, the output piping has metal piping extending forward from the braking force adjustment device disposed behind the down frame, flexible piping, and a connecting member that connects the metal piping and the flexible piping. The connecting member is disposed in front of the down frame, and the flexible piping extends forward from the connecting member, to be connected to the front wheel brake.

A saddle riding type vehicle having a front fork that supports a front wheel, a head pipe that rotationally movably supports the front fork, a down frame extending downward from the head pipe, a front wheel brake supported by the front fork, to brake the front wheel, a braking force adjustment device that controls braking force of the front wheel brake, and output piping that connects the braking force adjustment device and the front wheel brake, the output piping has metal piping extending forward from the braking force adjustment device disposed behind the down frame, flexible piping, and a connecting member that connects the metal piping and the flexible piping. The connecting member is disposed in front of the down frame, and the flexible piping extends forward from the connecting member, to be connected to the front wheel brake.

An angle adaptor for an integrated system (IS) bicycle frame head tube allows a user to change the effective head tube angle, and thus the fork trail, for a bicycle.

An angle adaptor for an integrated system (IS) bicycle frame head tube allows a user to change the effective head tube angle, and thus the fork trail, for a bicycle.

A hydraulic pressure control unit capable of suppressing application of an external force thereto in comparison with the related art at the time when mounted to a straddle-type vehicle is obtained.

A hydraulic pressure control unit (1) includes a base body (10) that is formed with a master cylinder port (11), a wheel cylinder port (12), and an internal channel (13) communicating the master cylinder port (11) and the wheel cylinder port (12) with each other. The master cylinder port (11) is formed in an upper surface (25) of the base body (10), and the wheel cylinder port (12) is formed in a lower surface (26) of the base body (10), the lower surface (26) opposing the upper surface (25). The internal channel (13) is configured not to be able to return a brake fluid in an accumulator (33) to the master cylinder port (11) without interposing an outlet valve (32). An inlet valve recess (18) and an outlet valve recess (19) are aligned in a direction in which the upper surface (25) and the lower surface (26) are aligned.