Abstract: There is provided a bearing holder comprising a first side, orthogonal to a head tube axis when the bearing holder is used in conjunction with a head tube of a bicycle, adapted to receive a bearing, and a second side, opposed to the first side, adapted to be removeably secured to a head tube of a bicycle, the bearing holder being adapted to axially position the bearing about the head tube. The bearing holder is mounted to the top end of the head tube of the bicycle and the fork tube is engaged to the bearing provided atop the bearing holder. The height of the bearing holder (or a spacer if the bearing holder sits onto such a spacer) determines the elevation of the handlebar connector and thus of the handlebars with respect to the head tube thereby permitting the adjustment of the elevation thereof.

Abstract: An adjustable handlebar assembly for a saddle-type vehicle includes a base member, a support member, a left handlebar and a right handlebar. The support member is rotatably coupled to the base member and each of the left handlebar and the right handlebar is attached to the support member. The support member is configured to permit the left handlebar and the right handlebar to be selectively moved relative to the support member and the base member, independently of one another, to selectively adjust each of the left handlebar and the right handlebar in respective, generally longitudinal directions along a saddle-type vehicle, when the adjustable handlebar assembly is pivotally coupled to a frame of the saddle-type vehicle.

Abstract: A suspension fork for a bicycle includes at least one stanchion tube and at least one slider tube interacting therewith and a wheel receiving space, and a damper system. The damper system includes a damper chamber divided into a first chamber and a second chamber by a movable piston and a damping device for rebound damping and a damping device for compression damping. The damper system is disposed at the stanchion tube, the damping device for rebound damping and the damping device for compression damping are disposed above the movable piston.

Abstract: A bicycle including a main frame, a front fork rotationally coupled to the main frame, a rear wheel rotationally coupled to the main frame, a front wheel rotationally coupled to the front fork, a handlebar, and a stem assembly coupling the handlebar to the front fork. The stem assembly includes a stem base coupled to the front fork, a face plate coupled to the stem base with the handlebar sandwiched between the face plate and the stem base, and an auxiliary retention system that holds the face plate engaged with the stem base.

Abstract: A bicycle suspension system of the present invention generally includes a bicycle suspension and a hydraulic control assembly. The hydraulic control assembly includes a fluid pump, a fluid responder and a fluid path. The fluid pump is mountable to a bicycle handlebar. The fluid responder is mountable to the bicycle suspension. The fluid path links the fluid pump and the fluid responder. The fluid responder is operatively connected to the bicycle suspension to operate the bicycle suspension between first and second suspension settings in response to fluid displacement between the fluid pump and the fluid responder.

Abstract: An aerodynamic braking system is disclosed herein. In particular, the brake arms may define an aerodynamic leading portion or edge and may be integrated into the legs of the front fork. Also, the brake arms may be disposed behind the bottom bracket shell to take the rear brake out of the air flow path and reduce aerodynamic drag. The rear brake arms are tapered so that the brake arms remain sufficient stiff to provide sufficient brake response times. The rear brake arms may be matched to recesses formed on an underside of chain stays.

Abstract: A bicycle front end assembly is provided which is configured to reduce aerodynamic drag. In particular, an axis shaft of a fork may be mounted to a head tube of a bicycle frame. A fork head may be disposed in front of the head tube for providing a front end assembly which is aerodynamically configured while providing an increased moment of inertia compared with traditional designs to reduce drag of the bicycle and increase steering stiffness. Also, the handlebar may be attached to the fork head such that when the bicycle is steered to the left, the fork head is rotated toward the left and when the bicycle is steered to the right, the fork head is rotated toward the right. In this manner, the fork head is alignable to the travel direction of the bicycle.

Abstract: A shock absorber is provided having an exterior that looks like a two-piece structure formed with an outer tube and a separate bracket without using the separate bracket. Also provided is a straddle type vehicle having a shock absorber and a manufacturing method for the shock absorber. The shock absorber comprises a cylindrical outer tube, wherein the outer tube includes a first cylindrical part, and a second cylindrical part having an outer surface roughness greater than the outer surface roughness of the first part. The first part and the second part are adjacent each other in a longitudinal direction of the outer tube, and the second part has an equipment attaching section adapted for attaching a piece of equipment.

Abstract: The bicycle may have a frame and a front fork. A cross section of the frame or the front fork may have an airfoil shape wherein a leading surface is sharper (i.e. less round) compared to prior art airfoil shaped bicycle front forks and bicycle frames. Additionally, a maximum thickness of the airfoil shape may be located more rearward compared to prior art airfoil shaped bicycle frames and bicycle front forks. This configuration provides for a reduction in drag for headwind speeds of about twenty (20) to thirty (30) miles per hour and headwind angles of plus or minus fifteen (15) degrees.

Abstract: The headset includes upper and lower rolling bearings (8, 9) housed inside the head tube so as to allow relative rotation of the steering tube, and clamping elements (18, 21) for axially clamping the lower and upper bearings (8, 9) against, respectively, a lower end and an upper end of the head tube. The axial-clamping elements include a threaded sleeve slipped over the steering tube. This sleeve is secured to the steering tube by connecting elements including a pin extending through two diametrically opposed holes in the threaded sleeve and through two diametrically opposed holes provided in the steering tube. The sleeve collaborates with a tapped annular cap slipped over the steering tube so as to force the upper bearing downward as the annular cap is screwed onto the sleeve.

Abstract: A bicycle front end assembly is provided which is configured to reduce aerodynamic drag. In particular, an axis shaft of a fork may be mounted to a head tube of a bicycle frame. A fork head may be disposed in front of the head tube for providing a front end assembly which is aerodynamically configured while providing an increased moment of inertia compared with traditional designs to reduce drag of the bicycle and increase steering stiffness. Also, the handlebar may be attached to the fork head such that when the bicycle is steered to the left, the fork head is rotated toward the left and when the bicycle is steered to the right, the fork head is rotated toward the right. In this manner, the fork head is alignable to the travel direction of the bicycle.

Abstract: A bicycle front end assembly is provided which is configured to reduce aerodynamic drag. In particular, an axis shaft of a fork may be mounted to a head tube of a bicycle frame. A fork head may be disposed in front of the head tube for providing a front end assembly which is aerodynamically configured while providing an increased moment of inertia compared with traditional designs to reduce drag of the bicycle and increase steering stiffness. Also, the handlebar may be attached to the fork head such that when the bicycle is steered to the left, the fork head is rotated toward the left and when the bicycle is steered to the right, the fork head is rotated toward the right. In this manner, the fork head is alignable to the travel direction of the bicycle.

Abstract: A bicycle steerer assembly that includes a stub tube, a steerer tube that extends upward from the stub tube, a pair of forks, and a fork crown or crown cap. A key and keyway are formed between the stub tube and a crown portion of each fork. The crown cap overlies the crown portion of each fork thereby preventing dissociation of the key and keyway between each of the pair of forks and the stub tube when the crown cap is positioned thereabout.

Abstract: A cap assembly for a threadless bicycle headset is provided. The cap assembly includes a fastener and an outer cap integratedly combined with an exterior of the fastener. By the above structure, the integrated cap assembly has a simplified assembling process and improved stability over the prior art.

Abstract: A vehicle has a vehicle body including a head pipe, a lower side bracket disposed below the head pipe for supporting the head pipe upward in a substantial center of the bracket in the vehicle width direction, and a pair of legs of a front fork fixed in vicinities of the ends of the lower side bracket. The lower side bracket is formed to have a downward sloping shape, which slopes from the ends of the lower side bracket toward its center.

Abstract: A device is described, for adjusting the inclination of a front fork of a two- or three-wheeled vehicle having a steering assembly (S) including a frame tube (3) and a steering tube (4) rotatable in the frame tube. The adjusting device comprises an upper connecting unit (10a) and a lower connecting unit (10b), for rigidly connecting the steering tube (4) to two substantially parallel fork rods (5). The connecting units (10a, 10b) are prearranged for enabling to vary in an adjustable manner the inclination of the fork rods (5) relative to the steering tube (4), without the need of relative separation or disassembling among the units, the fork rods and the steering tube.

Abstract: A bicycle steerer tube assembly having an oblong asymmetric cross section formed along a portion of the steerer tube. The asymmetric portion of the steerer tube has a first diameter that is generally aligned with an axis of rotation of the front wheel and a second diameter that is generally aligned with a plane of rotation of the front wheel. The first diameter is greater than the second diameter and provides lateral stiffness to the wheel assembly and the second diameter accommodates longitudinal impact absorption of the fork and wheel assembly.

Abstract: A triple tree system for mounting the front fork of a motorcycle to the handlebars and to the frame thereof. The system includes upper and lower triple tree members. The upper triple tree member includes a pair of apertures, each containing a threaded connector member fastened at one end to an internally threaded end of one handlebar member, and fastened at an opposite end to an internally threaded end of one fork tube. The lower triple tree member includes a pair of apertures, each accepting one of the fork tubes there through. Threaded apertures, each of which intersect an aperture holding a fork tube, contain a set screw that advances a rod into the fork tube aperture, thereby contacting one of the fork tubes therein, to lock the fork tubes to the lower triple tree member. A stem member is attached between the upper and lower triple tree members and attached to the frame of the motorcycle.

Abstract: A fork assembly for a bicycle includes a pair of forks and a steerer tube that extend in generally opposite directions from a fork crown. The assembly includes first and second means for securing the steerer tube to the fork crown. Preferably, the steerer tube is threaded and bonded to the fork crown. The fork crown includes a pair of cavities that each slidably receives a respective fork. Preferably, each fork is formed of a carbon fiber material and has an end whose shape substantially matches a shape of a respective cavity formed in the crown. The forks and crown cavities cooperate to efficiently communicate loads between the forks and the fork crown while maintaining a lightweight and robust fork, fork crown, and steerer tube assembly.

Abstract: A method of forming a corrosion resistant bushing includes bonding a sliding layer to a first surface of a load bearing substrate to form a laminate sheet and cutting a blank from the laminate sheet. The laminate sheet includes an exposed surface corresponding to a second surface of the load bearing substrate. The blank includes cut edges having a load bearing substrate portion. The method further includes forming a semi-finished bushing from the blank, and applying a corrosion resistant coating to the exposed surface and the load bearing substrate portion of the cut edges to form the corrosion resistant bushing.

Abstract: A top cover for a headset of a bicycle includes a bottom ring, a side wall, a C-shaped clip and a fastening unit. The side wall extends upwards from the bottom ring. The C-shaped clip extends upwards from a top end of the side wall and has a through hole at each of two distal ends thereof. The fastening unit passes through the through holes of the C-shaped clip for tightening the C-shaped clip. Thus, the top cover of the present invention can enhance convenience of assembly and disassembly of the bicycle, and prevent components of the headset from getting lost during assembly and disassembly of the bicycle.

Abstract: A wheel assembly, which is particularly applicable to bicycles, includes a hub, a pair of laterally spaced bearings, and is constructed to cooperate with a frame of a bicycle. The bearings include an outer race that is directly engaged with the hub. An inner race of each bearing is constructed to directly receive a portion of the bicycle frame such that the wheel is supported by direct interaction of the bicycle frame and the bearing members. Optionally, a hollow axle may extend between adjacent bearings to further enhance the lateral stiffness of the wheel assembly.

Abstract: A bicycle frame having a cavity constructed to receive a sensor device. The cavity has a shape and a contour that generally matches a shape and a contour of the sensor device. Such a configuration maintains the aerodynamic contour of the frame when the sensor device is positioned in the cavity. An optional plug occupies the cavity when the sensor device is not positioned therein. Preferably, the sensor device is constructed to wirelessly communicate bicycle operation information to a receiver that is remotely located relative to the sensor device. More preferably, the cavity is formed in a fork of the bicycle and the sensor device is configured to monitor operation of a front wheel and wirelessly communicate the operation information to the remote receiver.

Abstract: A rotator for a head tube of a bicycle has a mounting bracket, a rotating collar and a holding ring. The mounting bracket is mounted around the head tube and has a mounting ring and two legs. The mounting ring is mounted around the head tube and has a mounting channel, a kerf, an annular flange and a holding groove. The legs are oppositely mounted on the mounting ring. The rotating collar is rotatably mounted around the mounting bracket and has a chamber, an upper through hole, a lower through hole, a mounting channel and multiple balls. The holding ring is mounted in the mounting ring of the mounting bracket and has an engaging groove. The engaging groove engages the annular flange on the mounting ring.

Abstract: A bicycle drop out comprising a seat stay mount having a first receiving portion, a chain stay mount having a second receiving portion, a back plate releasably connected to the seat stay mount and the chain stay mount, the back plate comprising a first member for engaging the first receiving portion and a second member for engaging the second receiving portion, the back plate comprising a third slot for receiving an axle, the slot cooperatively disposed between the seat stay mount and the chain stay mount, and the seat stay mount and the chain stay mount having a gap therebetween for receiving a belt.

Abstract: A motorcycle includes a head pipe, a handlebar pipe that is rotatable relative to the head pipe, a main frame extending rearward from the head pipe, and a handlebar lock located on a topside of the main frame to prevent the handlebar pipe from rotating relative to the head pipe.

Abstract: A combination bicycle fork and steering tube assembly is formed with a pair of downwardly directed, mutually converging end closure tabs that are bent over into abutment and welded together to define peripherally enclosed fork openings at the ends of the steerer tube. The upper ends of the hollow fork legs are configured to follow the surface contours of the lower end of the steerer tube and are welded to the end closure tabs about the circumferences of the enclosed fork openings at the lower end of the steering tube. The front wheel axle dropouts are formed directly in the lower ends of the fork legs, which include internal dropout support inserts. The dropout support inserts are sandwiched in between a pair of flat, mutually parallel dropout tabs defined directly in the lower ends of the fork legs.

Abstract: A steering apparatus for a vehicle includes a stem pipe disposed in a head pipe by upper and lower bearings interposed therebetween, a seal member for covering the upper bearing, and bottom and top bridges mounted on lower and upper ends of the stem pipe, respectively. A single fastening bolt, having a step formed between a head and a threaded surface thereof, is fitted in a pipe insertion hole of the top bridge and the upper threaded portion of the stem pipe. The stem pipe is firmly tightened and supported by a slot-tightening mechanism of the top bridge. The fastening bolt is tightened by only a tightening force required to keep the fastening bolt from loosening. Also, a number of components required for the inventive steering apparatus is reduced, since an additional component, previously used for preventing loosening of a fastening bolt, is made unnecessary.

Abstract: A bicycle comprising a frame including a head tube, a fork rotationally coupled to the head tube, and a wheel rotationally coupled to the fork. The fork includes a crown, two legs extending downward from the crown, and a steerer tube extending upward from the crown and through the head tube. A handlebar and brake assembly is detachably secured to the fork. The assembly includes a stem, a handlebar secured to the stem, a clamp secured to an upper end of the steerer tube, a strap secured to the crown, a brake mount supported by the stem, and a brake secured to the brake mount. In one embodiment, the stem is hollow, and the bicycle further includes a brake cable to move the brake. In this embodiment, the brake cable and the brake are at least partially positioned within the hollow stem.

Abstract: A suspension assembly for a front end of a vehicle to provide lateral flex for absorption of lateral forces. The suspension assembly comprises a steering shaft including two ends: an end coupled to an upper triple clamp and another end coupled to a lower triple clamp. A spring unit couples one of the two ends of the steering shaft to the associated triple clamp and absorbs forces that are transferred from a road surface up through a front wheel and the pair of forks retained by the upper and lower triple clamps. A pivot mechanism couples the other triple clamp to the other one of the two ends of the steering shaft and creates a pivoting axis. The suspension assembly permits the front end to pivot about the pivoting axis and causes the spring unit to flex laterally in response to bumps in the road surface.

Abstract: A bicycle front end assembly is provided which is configured to reduce aerodynamic drag. In particular, an axis shaft of a fork may be mounted to a head tube of a bicycle frame. A fork head may be disposed in front of the head tube for providing a front end assembly which is aerodynamically configured while providing an increased moment of inertia compared with traditional designs to reduce drag of the bicycle and increase steering stiffness. Also, the handlebar may be attached to the fork head such that when the bicycle is steered to the left, the fork head is rotated toward the left and when the bicycle is steered to the right, the fork head is rotated toward the right. In this manner, the fork head is alignable to the travel direction of the bicycle.

Abstract: A securing device for a bicycle front fork has a clamping sleeve, an upper pressing base and a lower pressing base. The clamping sleeve is hollow, is made of a resilient material and has a C-shaped cross section. The upper pressing base is attached to a top end of the clamping sleeve and has a threaded hole and an upper pressing surface. The threaded hole is defined in the upper pressing base to screw with a connecting bolt. The upper pressing surface is conical and pressing against the inner surface of the clamping sleeve. The lower pressing base is attached to a bottom end of the clamping sleeve, is connected to the upper pressing base in a thread manner and has a lower pressing surface. The lower pressing surface is conical and presses against the inner surface the clamping sleeve.

Abstract: A bicycle steerer tube assembly having an oblong asymmetric cross section formed along a portion of the steerer tube. The asymmetric portion of the steerer tube has a first diameter that is generally aligned with an axis of rotation of the front wheel and a second diameter that is generally aligned with a plane of rotation of the front wheel. The first diameter is greater than the second diameter and provides lateral stiffness to the wheel assembly and the second diameter accommodates longitudinal impact absorption of the fork and wheel assembly.

Abstract: A bicycle including a suspension system operably positioned between the bicycle frame and at least one of the front wheel and rear wheel of the bicycle. The suspension system includes a damping system including a first valve and a second valve, which cooperate to provide desirable damping forces throughout a broad range of relative velocities of the suspension system, while also being relatively lightweight and compact. The first valve includes a first orifice and a first valve body configured to regulate fluid flow through the first orifice. The second valve includes a second orifice. In one arrangement, the second orifice is defined by the first valve body. In another arrangement, the second valve includes a second valve body configured to regulate fluid flow through the second orifice.

Abstract: A swivel device for bicycles includes a first ring adapted to be mounted on a head tube of a bicycle. The first ring has a plurality of first protrusions formed thereon. Each first protrusion connects to a first brake cable. A second ring is adapted to be mounted on the head tube. The second ring has a plurality of second protrusions formed thereon. Each second protrusion connects to a second brake cable. A positioning sleeve encloses the first and the second rings for positioning the first and the second rings in place. The first ring is able to pivotally swivel relative to the second ring. When braking, the second brake cables dragged to lift the second ring upwardly and the first ring moved upwardly to drag the first brake cables upwardly.

Abstract: The bicycle may have a frame and a front fork. A cross section of the frame or the front fork may have an airfoil shape wherein a leading surface is sharper (i.e. less round) compared to prior art airfoil shaped bicycle front forks and bicycle frames. Additionally, a maximum thickness of the airfoil shape may be located more rearward compared to prior art airfoil shaped bicycle frames and bicycle front forks. This configuration provides for a reduction in drag for headwind speeds of about twenty (20) to thirty (30) miles per hour and headwind angles of plus or minus fifteen (15) degrees.

Abstract: A handle stem for a bicycle, having a body and a lid, which can be fixed to the body, the body and the lid forming together a handle bar receptacle for receiving the handle bar of the bicycle, has a clamping ring being formed separate from the body and being inserted into a ring receptacle of the body for receiving the forked shaft of a fork of the bicycle.

Abstract: A suspension for a two-wheeled vehicle includes first and second fork legs. Each fork leg includes a dropout. Each dropout has an opening therethrough. At least a portion of one of the openings is threaded. Each of the dropouts includes a split-clamp pinch bearing defining the opening and operable between an open position and a locked position, and a hand operable actuator pivoted to the bearing for operation thereof. The suspension further includes a one-piece axle. The axle is disposed through the openings. The axle has a threaded first end engaged with the threaded portion. The axle has an ergonomic grip formed at a second end. The bearing tightly engages an outer surface of the axle in the locked position, thereby rotationally coupling the axle to the dropout.

Abstract: A steering system for a motorcycle includes a head pipe, a steering stem, a top bridge, a bottom bridge, a front fork, and a steering handlebar. The steering stem is supported by the head pipe. The top bridge has a center portion, a side portion extending from the center portion, and a holding portion provided at the side portion. The top bridge is supported by the steering stem at the center portion to steerably move around the head pipe. The bottom bridge is supported by the steering stem to steerably move around the head pipe. The front fork is held by the top bridge through the holding porting and is held by the bottom bridge. The top bridge has a protruding portion provided on an upper face of the top bridge and extending from the holding portion toward the center portion of the top bridge.

Abstract: A head tube assembly for a bicycle has a frame, a lower tube, an upper tube and a cover. The lower tube is mounted in the front end of the frame and has a top, a bottom and a lower bearing mounted in the bottom of the lower tube. The upper tube has a top, a bottom detachably connected to the top of the lower tube and an upper bearing mounted in the top of the upper tube. The cover is detachably mounted on the top at the front end of the frame and has a through hole mounted around the top of the upper tube.

Abstract: Device includes plates which are connected by an axle that extends through a guiding piece and a ball joint element positioned at the ends of a column tube. Rotating elements are disposed in the plates and enable same to rotate around the axle which is blocked in rotation by the guiding piece. The guiding piece has a concave spherical surface coupled to the convex surface of the eccentric which is equipped with a bore that is off-centre in relation to the vertical axis of the spherical surfaces and a flat surface which is perpendicular to the axis of the bore. An eccentric pivots in the bore and on the surface via a cylinder and a surface. The eccentric is equipped with a bore that is off-centre in relation to the cylinder. The combined reverse rotation of the eccentrics enables the assembly to pivot around the axis.

Abstract: A front fork for a bicycle having an upwardly extending mast of an aerodynamic teardrop shape to which a handlebar may readily be attached.

Abstract: A bicycle comprising a frame including a head tube, a fork rotationally coupled to the head tube, and a wheel rotationally coupled to the fork. The fork includes a crown, two legs extending downward from the crown, and a steerer tube extending upward from the crown and through the head tube. A handlebar and brake assembly is detachably secured to the fork. The assembly includes a stem, a handlebar secured to the stem, a clamp secured to an upper end of the steerer tube, a strap secured to the crown, a brake mount supported by the stem, and a brake secured to the brake mount. In one embodiment, the stem is hollow, and the bicycle further includes a brake cable to move the brake. In this embodiment, the brake cable and the brake are at least partially positioned within the hollow stem.

Abstract: A foldable device is adapted to connect a front fork to a handlebar of a bicycle, and includes a linking member hingedly connected to lower and upper hingeable flanges about first and second hinge axes, respectively. The first and second hinge axes are transverse to each other. The upper and lower hingeable flanges are respectively coupled with the handlebar and the front fork. The handlebar is turned relative to the front fork about the first and second hinge axes to permit a handlebar line of the handlebar to be parallel to a longitudinal direction in which the bicycle extends so as to fold the bicycle and to minimize the entire width of the folded bicycle.

Abstract: Conventional linkages between bicycle handlebar-mounted controls and rear brakes and gears are unable to accommodate unlimited rotation of the handlebars as is required on some so-called “freestyle” bicycles. A prior attempt to solve the problem employs a linkage comprising a bearing having two parts that are relatively rotatable about an axis. However this proposal is unable to handle situations where there are two or more mechanisms to be controlled e.g. a rear brake and a gear. Another problem is that dirt between the bearing surfaces may cause the bearing to jam. The invention provides pins (15C) that fit into slots (8A) for restricting rotation, relative to the handlebars, of a first bearing part (15A) and pins (15F) that fit in slots (9A) for restricting rotation, relative to the bicycle frame, of a second bearing part (15B). The aforementioned slots are formed in cylindrical guide walls not visible in FIG. 5.

Abstract: A vehicle, such as a motorcycle, has a structure in which strength of a body frame is increased and positional accuracy between members constituting the body frame is improved. A head pipe of the motorcycle can include a pipe portion inside which a steering shaft is disposed, and a wall portion formed rearward of the pipe portion. The wall portion and the pipe portion can be integrally formed by extruding performed in a direction in which the pipe portion extends. Left and right main frames extending rearward can be disposed on the wall portion. The motorcycle can further include a reinforcing member disposed rearward of the wall portion, arranged such that an upper portion thereof is sandwiched by the right and left main frames, and having rest portions on which the right and left main frames are placed.

Abstract: A motorcycle that reduces air resistance without a cowling includes a steering handle, a headlight unit disposed in front of a handle base disposed at a substantial center of the steering handle, a meter unit disposed above the handle base, and a fuel tank disposed behind the handle base. In a side view of the motorcycle, the headlight top surface, the meter top surface and the fuel tank top surface are smoothly connected.

Abstract: A bicycle is provided with an identification device. The identification device includes a base, an identity plate and two fasteners. The base is formed on the bicycle. The fasteners are used to attach the identity plate to the base so that the identity plate cannot be removed from the base.

Abstract: A stem front cap for the stem of a bicycle, including: a body having a mounting part that is adapted and structured for receiving and securing a handlebar in conjunction with a stem. A receiving section at the body of the stem front cap is provided for receiving and securing at least one aero support to enable the user to assume an aerodynamic operating posture on a bicycle.

Abstract: A stem connecting the handlebars and steerable fork of a cycle has one tube attached to the handlebars and another tube attached to the steerable fork with the tubes capable of being rotated and locked with respect to one another. This arrangement allows for various configurations of the handlebars and fork including the typical riding configuration as well as an alternate configuration where the handlebars are ‘folded’ with respect to the fork. Change in configuration is accomplished without tools by way of a biased locking arrangement for the tubes.