Abstract: A brake assembly for a motorcycle provided with a hydraulically actuated front brake and rear brake for a front wheel and a rear wheel, respectively, including a first brake actuating device and a second brake actuating device, for applying hydraulically pressure to the front and rear brakes; and an electronically controlled braking system, having a first hydraulic system extending from the first brake actuating device connected to the front brake, and a second hydraulic system extending from the second brake actuating device, connected to the rear brake, with an electronic control device receiving detection values for each of the first actuation amount detection device for detecting an actuation amount of the first brake actuating device, and a second actuation amount detection device for detecting an actuation amount of the second brake actuating device, subjecting them to computation, and outputting control signals to a hydraulically controlled actuator based on the result of the computation, and actuating

Abstract: A disc brake oil-adjusting device for bikes includes a handle, a main cylinder and an auxiliary cylinder having one end communication with the main cylinder and the other end protruding out of the handle. An adjusting device screws with the interior of the auxiliary cylinder and has an adjusting rod and turning button combined with a tail end of the adjusting rod. A protective cover and a grip are pivotally connected with the handle, and the protective cover has an opening for receiving the turning button so as to be located near the grip and turned to move the adjusting rod move so as to control the auxiliary cylinder in its capacity to absorb excessive brake oil, lowering the temperature of the disc to keep safety in running a bike.

Abstract: A bicycle disc brake is provided in which a support member movably couples the brake caliper to the frame of the bicycle. The bicycle disc brake caliper has a caliper housing with a single piston unit. The piston unit is movably coupled to the housing between a release position, in which the piston unit is spaced from a disc brake mounted to a wheel of a bicycle, and a braking position, in which the piston unit engages the disc brake of the bicycle wheel. The piston unit has a first friction member movably coupled between a release position and a braking position and a second friction member arranged substantially parallel to the first friction member to form a disc brake receiving space between the first and second friction members. In one embodiment, the caliper housing is movably coupled to the support member by a pivot pin. In another embodiment, the caliper housing is movably coupled to the support member by a linkage assembly.

Abstract: A cable feed for a cable actuated bicycle includes a housing and an actuator residing within the housing operatively associated with the cable. The cable feed consists of a mount attached to the housing having a mount orifice along a guide axis. A cylindrical ferrule having an axial bore extending between first and second ferrule ends includes a barb at the first end and a stop near the second end. The ferrule is axially inserted within the first end leading into the mount orifice with the stop halting axial insertion of the ferrule into the mount orifice. A minor elastic boot having a first end with an inwardly extending angular flange mates with the attachment barb and has an outer diameter at the first end large enough to prevent axial withdraw of the ferrule from the mount orifice.

Abstract: A caliper for a disk brake consists of a housing having first and second brake pads mounted therein to receive a brake disk therebetween. At least one of the brake pads is advanced along an advancement axis towards the other brake pads by an actuator within the housing. During actuation the brake pads impart a compression force on a brake disk disposed therebetween which results in a tensile force in the housing parallel to the advancement axis. A reinforcing member operatively engages the housing to oppose the tensile force on the housing. A method of making a caliper housing as described above consists of forming the housing as a single piece of metal and preloading the housing with a compression force parallel to the advancement axis to oppose the tensile force. Preloading may be accomplished by forming a pair of bores in the housing radially space from the advancement axis with the bores having an internally threaded portion at one end.

Abstract: A motorcycle chassis embodies novel techniques, geometries, and configurations to provide enhanced performance, including new techniques to enhance braking performance. A first feature facilitates the application of braking force to each wheel in proportion to its traction capability. Maximum deceleration rates are provided prior to wheel lockup. A second feature applies liquid cooling to a brake disk. Liquid cooling eliminates brake fade caused by overheating of the brake pad material. Aerodynamic control features in concert with unique component arrangement better protect the rider from wind forces and also reduce aerodynamic drag. Narrow steering bars enclosed by bodywork and deep leg notches in the fairing contour largely remove rider induced air flow trips. The leg notches serve to brace the rider during deceleration, unloading his wrists from much of the braking force. An exhaust system routed over the engine permits a totally smooth body undercarriage to reduce aerodynamic drag.

Abstract: A dual handle brake (10) has a dual master cylinder (12) having a dual master cylinder rear brake fluid pipe (12A) attached thereto connected to a first master cylinder. A half pipe configured front brake handle (14A) is movably attached to the dual master cylinder front brake connector (12D). A cylindrical rear brake handle (14B) is movably attached to the dual master cylinder rear brake connector (12C). A U-shaped brake connector (14C) has a sufficient width to accept the cylindrical rear brake handle (14B) having the front brake handle (14A) contained therein. An attacher (16) securely connected to the dual master cylinder (12) and removably connectable to a handle bar (18).

Abstract: A bicycle disc brake caliper is provided with a cooling system that transfers heat away from the actuating fluid. Basically, the bicycle disc brake caliper has a housing and a piston unit, with a coolant member of the cooling system attached to the housing. The housing has a frame mounting member sized to be coupled to a portion of a bicycle frame. The piston unit is movably coupled to the housing between a release position, in which the piston unit is spaced from a brake disc mounted to a wheel of a bicycle, and a braking position, in which the piston unit engages the brake disc of the bicycle wheel. The coolant member has a coolant area for receiving coolant to create a coolant heat sink that transfers heat from the housing. The housing has an actuating passage in fluid communication with the piston unit to move the piston unit via an actuating fluid. In one embodiment, the cooling system includes a pump and a reservoir.

Abstract: A hydraulic brake system for a bicycle includes a body having two inlets respectively connected to two brake levers, and two outlets respectively connected to a front brake assembly and a rear brake assembly. A common groove is defined in the body and communicates with the two inlets and the two outlets by passages. Hydraulic oil filled in the common groove and the passages. An adjusting passage communicates with the common groove and a plug is movably received in the adjusting passage so as to be moved to adjust a communicating between the passages of the front brake assembly and the rear brake assembly.

Abstract: In order to provide a disk brake for vehicles, comprising a brake disk securely connectable to a hub, a brake caliper engaging over the brake disk on oppositely located sides, at least one first brake lining movable in the direction of the brake disk in relation to the brake caliper and at least one second brake lining arranged on the brake caliper so as to be non-displaceable, with which the brake linings do not touch the brake disk in the non-actuated state, it is suggested that the brake caliper be arranged so as to be fixed in a defined geometrical correlation to the hub, that the brake caliper be positioned in relation to the brake disk when the disk brake is not actuated such that a gap exists between the brake linings and the brake disk, and that when the disk brake is actuated the first brake lining act on the brake disk in such a manner that an outer ring of the brake disk acted upon by the first brake lining moves in the direction of the second brake lining under elastic deformation of the brake dis

Abstract: Piping associated with interlocked brakes for front and rear wheel brakes is to be simplified to improve maintainability and provide a brake system suitable particularly for a two-wheeled motor vehicle satisfying racing specifications. A braking system includes hydraulic brakes with three hydraulic systems which are a lever hydraulic system for a front wheel brake, an interlocked hydraulic system for a rear wheel brake and a pedal hydraulic system. A pressure sensor detects a hydraulic pressure in the lever hydraulic system and outputs the detected signal to a control unit in the interlocked hydraulic system through an electric wire. The control unit controls the operation of a motor, thereby causing a hydraulic pressure to be developed in a submaster cylinder, which hydraulic pressure is fed to the rear wheel brake through a control valve.

Abstract: A hydraulic brake system for a two wheel bike having handlebars, a master cylinder assembly mounted on the handlebar, the assembly including a housing, a tubular body mounted in the housing, a piston mounted in the tubular body, an overrating lever pivotally mounted on the housing, a push rod operatively connecting the operating lever to the piston, a spring mounted in the cartridge body to bias the piston to an inoperative position in the cartridge body, a resilient bladder filled with a hydraulic fluid enclosing the cartridge body, a port timing hole in the cartridge body connecting the cartridge body to the bladder to maintain fluid pressure in the cartridge body, a brake assembly mounted on the housing, and a brake line operatively connecting the cartridge body to the brake assembly.

Abstract: A motorcycle disk brake rotor in the shape of an annular ring is (i) mounted to the motorcycles rear wheel at the outside of its annulus and (ii) swept by the yoke of a disk brake caliper that is mounted to the inside of the annulus. A belt pulley affixes at its exterior circumferential region--either rigidly or "floating"--the exterior annular region of the disk brake rotor which is in the shape of the annular ring. A motorcycle disk brake caliper assembly is anchored at one mounting point to the motorcycle's rear axle shaft, and at a second mounting point to the motorcycle's suspension swingarm, engages the disk brake rotor from the inside of its annulus. The combined disk brake and belt pulley assembly is compact and visually regularly appearing. It may suitably be stylized with the same pattern as are the wheels of the motorcycle.

Abstract: A bicycle brake system includes a flexible brake disk, a fixed mount single acting caliper, fixed and moveable brake pads and a brake actuator. The caliper is mounted on the bicycle frame in a position to straddle the brake disk. The fixed brake pad is mounted on one side of the caliper, and the moveable brake pad is mounted on the other side of the caliper. The brake actuator is on the moveable brake pad side of the brake disk and is aligned with the flexible brake disk. Upon actuation of the brake actuator, the flexible brake disk is flexed into engagement with the fixed brake pad.

Abstract: A hand operated hydraulic brake system includes a manual, lever operated master cylinder control which transfers hydraulic pressure from the master control to one or more hydraulic slave actuating cylinders. The system transfers force through the use of rolling diaphragms in a completely sealed hydraulic containment system. Actuated by the lever, the applied force is transmitted through a hydraulic line, or lines against piston rams to force brake pads against a rim, disk or other braking surface of a wheel.

Abstract: A disc brake, preferably for motorcycle front wheels, including a peripheral annular disc and arranged such that its caliper reaction passes through a fixed axle coaxial with the wheel axis. The caliper is mounted at the end of a radial arm rigidly connected to the axle and the axle is torsionally keyed into at least one antirotation seat at a respective cooperating portion of the wheel support.

Abstract: A brake device for a bicycle includes a control portion disposed to a front fork of the bicycle, the control portion having a bottom with a tubular element extending therefrom and a first piston received therein with a first resilient element disposed between the first piston and the bottom, hydraulic liquid received between the first piston and the bottom, two pipes respectively communicated with a space filled with hydraulic liquid and connected to a corresponding brake part disposed at the front fork, an actuating device slidably received in the control portion and operated by the brake cable so as to push the first piston toward the bottoms the brake part having a second piston received therein with a rod extending therefrom which has a brake pad disposed at a distal end thereof, a board received in the brake part and the rod extending therethrough, a second resilient element disposed between the second piston and the board such that when the brake cable is pulled to push the first piston to pressurize th

Abstract: Hydraulic systems for bicycles or other small land vehicles include a master or control cylinder actuated by the brake lever, and a slave cylinder connected to the master cylinder by a hydraulic fluid line. The slave cylinder carries a piston, and the slave cylinder or piston is connected to the callipers for applying the brakes. With repeated use, the lever becomes loose or develops play. A solution to the problem provided by this invention incudes an adjustment screw in the slave cylinder for quickly and easily adjusting the position of the piston in the slave cylinder, so that in the rest position, the fluid pressure on the lever maintains the latter in a fixed position. An eccentric cam can also be mounted on the lever for adjusting the rest position of the lever with respect to a piston in the master cylinder to achieve the same effect.

Abstract: A disc braking assembly provides a compact, lightweight braking arrangement which utilizes hydraulic fluid to provide greater braking power. Durability and reliability are achieved by use of a compensating chamber and piston having a compensating piston biasing member.

Abstract: A brake assembly for a bicycle includes a brake lever which is pivotally engaged to a base in which a first chamber is defined, the first chamber being filled with oil and a first piston movably received therein which is actuated by the brake lever, a wheel of the bicycle having a first arm disposed on one side thereof and a second arm disposed on the other side of the wheel, each of the first and the second arms having a second chamber defined therein, a second piston movably received in the second chamber and connected to a brake pad on a distal end thereof, a first pipe connected between said first chamber and the second chamber of the first arm and a second pipe connected between the respective second chamber of the first and the second arms.

Abstract: A motorcycle braking system distributing liquid pressure to a first front brake, a second front brake and a rear brake includes a first master cylinder actuated by a front brake lever and a second master cylinder actuated by a back brake pedal. The first master cylinder is connected directly to the first front brake and the second front brake. The brake system also employs a pressure controller that distributes liquid pressure from the first and second master cylinders to the second front brake according to the liquid pressure from the second master cylinder. A secondary master cylinder supplies a secondary liquid pressure to the rear brake in response to actuation of the first front brake. The secondary liquid pressure supplied to the back brake is transformed by a pressure-transformer. Using these components, the braking system implements a braking control method that provides improved control of the motorcycle while braking.

Abstract: An actuator for a hydraulic brake for use on a bicycle with a handlebar, including a handle housing, a hydraulic master cylinder which contains a piston, and which hydraulic master cylinder is filled with brake fluid and is integrated into the handle housing, a brake handle by means of which the piston can be moved to generate pressure in the master cylinder by means of the brake fluid, a brake hose and a vent line, whereby located in the handle housing are a brake line and a vent line which are connected to the master cylinder and are at an angle to one another. On their ends, the two lines have connection threads which are identical, so that the brake hose can be connected both axially parallel to a straight handlebar and at an angle .alpha. when a curved handlebar is used.

Abstract: A hydraulic bicycle brake is kept free of leakage thanks to the fact that a hollow body is utilized, consisting of an elastic encasement (7) connected on one side with the brake piston (17) and on the other side with the inlet flange (18), having a connection to a master cylinder by means of a fluid line; whereat due to this connection of piston (17), encasement (7) and inlet flange (18) there isn't any loss of fluid and the loads due to pressure and strain exerted onto the elastic part of the hollow body respectively in the transition zone: piston bottom--encasement and solid piston bottom, have less effects than observed for common pot-like shaped diaphragm seals, because of shear-, compression- and tensile forces as well as bending moments being by their distribution on the different materials respectively their connection of less influence, thanks to this make, comprising two different materials and thus foreseeing greater security, better durability and longer service life.

Abstract: A motorcycle forward control for rear brakes. A housing internally carries a brake cylinder unit comprising a cylindrical chamber in which a plunger is operated through a linkage from a brake pedal. Pressurized brake fluid is directed from the cylinder through an internal channel in the housing along a path which exits through the rear of the housing and into a brake line leading to the rear brakes. The operating linkage includes a clevis-shaped lever which applies thrust forces evenly along the thrust axis of the plunger. A footrest is mounted on the housing with the provision being made for adjusting both vertical and laterally tilt positions of the footrest for rider comfort.

Abstract: An actuator for a hydraulic brake for use on a bicycle with a handlebar, including a handle housing, a hydraulic master cylinder which contains a piston, and which hydraulic master cylinder is filled with brake fluid and is integrated into the handle housing, a brake handle by means of which the piston can be moved to generate pressure in the master cylinder by means of the brake fluid, a brake hose and a vent line, whereby located in the handle housing are a brake line and a vent line which are connected to the master cylinder and are at an angle to one another. On their ends, the two lines have connection threads which are identical, so that the brake hose can be connected both axially parallel to a straight handlebar and at an angle .alpha. when a curved handlebar is used.

Abstract: A hydraulic actuating device for brakes and gearshifts on bicycles or the like comprises an actuating lever (1b), a transmitting cylinder (1a), a flexible pressure line (9) and a receiving cylinder (1). The receiving cylinder (1) is connected with a first component (A) of a device to be actuated, and the piston (20) in the receiving cylinder (1) is mechanically connected with a second component (B) of the device by a traction cable (25).

Abstract: An antiskid braking device for a motorcycle includes a single pump unit which is used to repressurize braking mechanisms of front and rear wheels of the motorcycle and mounted almost in a central portion of a body frame of the motorcycle and a master cylinder of the front wheel. Middle portions of front wheel brake pipes connecting the pump unit to the braking mechanisms are formed of metallic pipes, both ends of the metallic pipes are connected to the braking mechanisms, the master cylinder and the pump unit through flexible brake hoses, and the metallic pipes are arranged along an inside face of a pair of bilateral tank rails of the body frame extending rearward from a head pipe of the motorcycle. The pump unit is mounted so as to extend in a longitudinal dimension thereof along a longitudinal direction of the motorcycle and a brake pipe port section faces front and rear directions of the body of the motorcycle.

Abstract: A caliper brake assembly for a bicycle having a fork, a wheel having an axle mounted in said fork, and a brake disk mounted on the wheel, the assembly including a caliper housing mounted on the fork in a position to bridge the brake disk, the housing including an arm connected to the axle and a blind bore in the housing having a closed end and an open end, a piston mounted in the bore on each side of the disk, each piston including a brake pad, a master cylinder assembly connected to the bore, the caliper housing including passages connecting the open end of the blind bore to the closed end of the blind bore, and a lever assembly mounted on the bicycle for actuating the master cylinder assembly to pressurize the bore and move the pistons into engagement with the disk to brake the rotary motion of the wheel.

Abstract: A hydraulic brake for bicycles consisting essentially of a brake lever fastened on the steering column of a bicycle which works on a master piston movably arranged in a master cylinder, wherein the chamber in the cylinder is filled with hydraulic fluid, which is conducted by way of a hydraulic tube into the chamber of a working cylinder, in which a main piston is movably arranged, which works on the brake shoes of the bicycle. Along with lower manufacturing costs, there is easy interchangeability and a good reliability in servicing the brake. A single working cylinder is fastened above the fork of the bicycle and the main piston is connected with a control head, over which a traction cable is directed, which works on the usual brake shoes.

Abstract: A low profile disk brake caliper in which a disk brake pad is mounted on a flexible diaphragm contained within a piston cavity. Pressurization of the piston cavity by a master cylinder expands the diaphragm and urges the brake pad sidewardly from the housing to engage an adjacent rotor. In the preferred embodiment, the diaphragm is received within a cap seal slidably mounted within the cavity, and the brake pad is mounted removably within a pad carrier attached to the cap. A backing seal is positioned adjacent to the underside of the top wall of the diaphragm and is clamped against the cap by assembly bolts, so that the top wall of the diaphragm is compressed between the cap and backing seal, thereby preventing the top wall from bulging outwardly when the cavity is pressurized. The housing is mounted on the hub of a bicycle front wheel and includes a set screw positioned for camming engagement against the front fork to prevent rotation of the brake caliper relative to the fork.

Abstract: Disclosed herein is a method of and a system for controlling brakes. In the brake control system, grounding loads on front and rear wheels are determined and a correction value for the braking of a predetermined wheel is computed based on the grounding loads thus determined. A braking force is determined inclusive of the computed correction value. A correction value for the braking of the front wheel is computed based on the determined grounding loads. Thus, the optimum brake control can be made without being affected by a variation in the distribution of the loads of the front and rear wheels relative to the ground.

Abstract: A motorcycle front wheel and disc brake assembly wherein the caliper of the disc brake assembly is supported directly by an axle carrier of the front wheel and is nested between the axle carrier and the front wheel. The caliper assembly is mounted centrally on the axle carrier so as to minimize the length of its supporting bracket and to reduce adverse effects on the suspension and steering of the front wheel.

Abstract: The invention is a bicycle front assembly in which suspension is provided by a pair of telescoping tubes having a plurality of elastic cells of different stiffnesses in their hollow interior. Steering geometry adjustment is provided by connecting the bottom end of one of the tubes to the front wheel axle by a drop-out which horizontally offsets the tube from the axle. Retrofitable hydraulic front wheel disk brakes are provided by a closed system hydraulic brake caliper assembly mounted to the front wheel axle and connected to a conventional brake cable of a handbrake. Automatic self-centering of the disk is provided by a web mounted on the front wheel axle having horizontal fingers nested in holes in the disk along which the disk is allowed to slide in response to a centering force from the calipers.

Abstract: A double caliper braking system of differential action, operated by a pressure circuit with two parallel branches connected to the calipers. One of the brake calipers is of smaller dimensions than the other. One of the two branches is provided with a pressure regulator device to cause only one of the two calipers present in the system to act up to a certain threshold value.

Abstract: An anti-skid apparatus having a valve, which is embodied to form a pressure limiting device between the outlet of a return pump and a master brake cylinder. As a consequence, a high-pressure reservoir can be of smaller capacity and can therefore be less expensive, since the pressure limiting device protects the pressure reservoir and other hydraulic elements from a pressure overload.

Abstract: A front fork assembly of a motorcycle comprises a pair of inverted type front forks each comprising an upper outer tube and a lower inner tube, upper and under brackets mounted to the front fork which are operatively connected to a body of the motorcycle, an axle bracket secured to the lower end of each of the front forks, a caliper bracket secured to the axle bracket, a caliper mounted to the caliper bracket, a disc plate supported by the axle bracket, a protector disposed in front of the front fork for protecting the front fork and a brake hose extending therealong, and a guide member secured to the front fork to vertically slidably support the front fork protector. The lower end portion of the brake hose is protected by a protector of specific structure so as not to contact to the road surface during the running of the motorcycle.

Abstract: A hydraulic bicycle brake comprises at least one actuating cylinder and at least one brake cylinder in a cylinder mounting, the brake cylinder being connected to the actuating cylinder by a fluid line, wherein the fluid line opens into a variable-volume chamber in the brake cylinder and the movement of a brake element, for example a brake shoe, is controllable by the variation in volume thereof, characterized in that the brake cylinder rests in the mounting eye of a rotatable mounting element and the latter can be fixed in a preselectible position.

Abstract: A master cylinder apparatus for a vehicle is adapted to be attached to a bar type steering handle. This master cylinder apparatus comprises a master cylinder attached directly or via a bracket to the bar type steering handle, an operating level pivoted on the bracket or a lever bracket of the master cylinder by means of a support shaft, an adjust bolt provided thrustable forward and backward to the operating lever, and a push rod having one end abutting on the rear end of a piston in the master cylinder and the other end pivoted on a free end of the adjust bolt. The forward/backward thrusting movement of the adjust bolt alters the distance between the support shaft and the point of action of the operating lever to the push rod, thereby changing the lever ratio of the operating lever to provide the operational feeling desired by a rider.

Abstract: In an anti-lock brake system (ABS) for a motorcycle the driving stabilty is improved by measuring the position of lateral inclination of the motorcycle and adjusting at least one threshold value for the anti-skid control in response to the measurement. In another embodiment the transverse acceleration of the motor cycle is measured and an ABS threshold value adjusted accordingly.

Abstract: In a motorcycle with a pair of left and right steps mounted in a projecting manner on a lower portion of a vehicle body, a pair of left and right brake pedals capable of independently operating the rear wheel brake are pivoted on the vehicle body in close vicinity to the left and right steps, respectively. When a driver turns the motorcycle in either left or right direction with his one foot being placed on the ground, the driver can operate the rear wheel brake using the opposite foot.

Abstract: An improved hydraulic brake apparatus for bicycles wherein brake pads are operably associated with both the front and rear wheels of the bicycle and manually actuated by a brake handle to enforce braking conditions. The improved brake apparatus includes an immersed valve member in a vertical hydraulic mechanism designed for simple and efficient performance, an improved linkage that provides increased mechanical advantage, self-adjusting retraction screws that allow for customary pad wear, an improved housing clamp for mounting the housing to the handlebar and an enhanced hose fitting that is likewise designed for simple, effective performance.

Abstract: A bicycle brake system with at least one master cylinder that is connected to a hand lever, and at least one wheel cylinder that is connected thereto by a hydraulic brake line is to be improved in that a hollow body (38) that is of elastic material and closed at one end is installed in a master cylinder (12); in that interior space (39) accommodates a pushrod (44) that is adjacent to the hand lever (13) and its closed face end (37) rests against a piston (34) that is supported against the accumulator within the reducible pressure chamber (30) of the master cylinder.

Abstract: The supporting and attaching device is connected to non-rotating parts of at least one brake caliper or yoke intended to cooperate with a brake disk and it comprises an attaching piece in a generally arcuate form, situated beyond the periphery of the disk and of which at least part of the transversal section is U-shaped with two legs one of which legs constitutes the section of a plate clamped onto a single arm for wheel suspension, while the other leg constitutes the section of at least one tab secured on either side to a brake caliper straddling a brake disk and is applied to double disk brakes for motorcycles.

Abstract: An anti-lock modulator unit is mounted adjacent to a front wheel fork of a motor cycle by a mounting plate which is secured to the axle. A drive pinion for the unit may be driven either directly, or through a belt drive, from a pinion which, in turn, is driven from the hub of the wheel, with the pinions located within a sealing recess between the plate and the casing.

Abstract: A front fork of a bicycle including outer cases disposed above on the side of a vehicle body, inner tubes disposed below on the side of a wheel and telescopically inserted into said respective outer cases, and brake callipers provided at the rear of the bottom end of said inner tube. A protector covering the front of the inner tube therealong, is provided, and the bottom end of this protector is fixedly secured to an axle support member connected to the inner tube. A hose holding member for holding a brake hose is formed on the front surface of the protector, and also there is provided a hose guide member for guiding a brake hose portion extending from the hose holding member up to the brake callipers so as to detour by the side of the inner tube along a route having a larger radius than that of the outer case.

Abstract: A mechanical arrangement to provide power assistance for the application of vehicle brakes with a positive shut-off of power assistance immediately upon release of the brake control by the user. The shut-off is achieved mechanically by providing pressure relief from the power assist pressure chamber by connecting a pressure relief channel between the power assist chamber and the brake fluid reservoir or by disconnecting the power piston in the power assist chamber from the main piston as soon as the brake control is released by the user.

Abstract: A braking system for two-wheelers is provided with a normal-duty actuation member which acts on both a front braking assembly and a rear braking assembly, and with an emergency actuation member which acts on one only of said braking assemblies; means are provided for balancing the actuation force applied by the normal-duty actuation member and the actuation force applied by the emergency actuation member on the common braking assembly, which enable the greater of the two braking actions to be applied as the braking action, for the purpose of preventing the jamming, and hence the skidding of the vehicle wheel on which such common braking assembly acts.

Abstract: A disc brake includes two pad supporting levers which are pivotally mounted on a single pivot. One of the levers has a first adjustment bolt which abuts the other lever to control the maximum clearance between the pads and a second which abuts the bracket on which the levers are pivotally mounted to control the clearance between one of the pads and the rotatable disc. A linkage which interconnects the levers induces same to rotate and clamp the pads against the rotatable disc by (a) a foot pedal controlled hydraulic servo integrated with the bracket and/or (b) a cable arrangement operatively connected with a hand brake.

Abstract: An off-road vehicle has a hydraulic brake operating assembly mounted on a steering handle. The steering handle has a base, a rectangular handle portion integral with the base, and a cover covering the base. The brake operating assembly has a brake oil reservoir, two brake levers pivotally supported on lateral sides of the handle portion for braking front and rear wheels, respectively, and two brake master cylinders communicating with the brake oil reservoir through hoses and responsive to operation of the brake levers for generating hydraulic pressure. The brake oil reservoir is centrally fixedly mounted on the rectangular handle portion. The brake master cylinders are fixedly mounted respectively on the lateral sides of the handle portion.

Abstract: This invention relates to hydraulic master cylinder assemblies having a hydraulic master cylinder and an actuating mechanism and in particular to a hydraulic master cylinder assembly in which it is possible to alter the travel ratio between a driver operable actuating lever and a piston of the hydraulic master cylinder. The actuating mechanism includes a lever mechanism interposed between the actuating lever and the piston the effective lever arm length of which can be altered by means of an adjustable member forming part of the lever mechanism.