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4744579 Motorcycle with single-shock-absorber, front suspension  
The axle of the front wheel of a motorcycle is carried on a pivotable member articulated about the same axis of articulation as the pivotable fork which supports the rear wheel. Single...
4744434 Wheel suspension system for motorcycles  
A wheel suspension system for a motorcycle including a relatively stable member and a swingable member swingably connected with the stable member and supporting thereon a road wheel. The wheel...
4742884 Brake device for a motorcycle  
A motorcycle having a cantilevered type rear swing arm including a rear brake between the swing arm and the rear wheel. An air inlet is provided on one side of the other rear swing arm in a thin...
4742885 Fork stabilizer for motorcycle  
A fork stabilizer for the front-end fork of a motorcycle is provided. The fork stabilizer includes an elongate member, comprised of unitary metallic material having a substantially solid...
4735276 Apparatus for front suspension of motorcycle  
This disclosure relates to apparatus for use with a motorcycle including a frame, a front wheel and a suspension system connecting the front wheel with the frame, the suspension system including a...
4735278 Heated air ducting structure for motor cycles  
A heated air ducting structure (20; 200; 300; 360; 400) for motor cycles (50; 350; 450) including an engine (2; 302) mounted at a lower position in the front part of a vehicle body frame (1) and a...
4735178 Turbo-supercharger for internal combustion engine  
A turbo-supercharger is provided for internal combustion engines which comprises a turbine disposed at an intermediate portion of an exhaust passage for the engine, and which is driven by a gas...
4733741 Wear plate for a motorcycle  
An arcuate wear plate mounted underlying the starter motor housing of a motorcycle protecting the same from engagement by an adjacent drive chain.
4727953 Body frames for automatic two-wheeled vehicles  
A pair of main frames, which form an essential part of a body frame of a motorcycle, are fixed at the front ends to a head pipe, and extend toward the rear portion of a body at a given increasing...
4727951 Motorcycle front and rear wheel shock absorber assembly  
A body structure for a motorcycle with a front wheel and a rear wheel, including a body frame assembly having an engine mounted thereon and having vertically swingably joined thereto a front...
4727952 Motorcycle, and body structure therefor  
A body structure for a motorcycle with a front wheel and a rear wheel, including a body frame assembly having an engine mounted thereon and having vertically swingably joined thereto a front...
4727717 Exhaust gas cleaning system for multi-cylinder internal combustion engines  
An improved exhaust gas cleaning system for a multi-cylinder internal combustion engine having an exhaust system with exhaust ports opening into a plurality of combustion chambers. A secondary air...
4726439 Trunk structure in scooter-type vehicles  
A multi-wheeled vehicle of the motorcycle or motor scooter type including having a vehicle body including a front cover, a rear cover and a low-slung step portion which extends beneath the line...
4724921 Main stand mounting mechanism  
Mechanisms for mounting a main stand on a motorcycle are disclosed. The linkage between the front portion of the motorcycle power unit and the motorcycle body frame is used to mount the main stand....
4723620 Motorcycle frame and swing arm support structure  
A motorcycle structure including a power unit having a transversely mounted engine with side covers of the crankcase extending forwardly of the power unit to provide mounting points for a swing arm...
4723619 Cover structure for power transmission device  
There is disclosed a cover structure in a power transmission device comprising a casing having an open side, a driver shaft rotatably supported by the casing, a driven shaft rotatably supported by...
4721178 Multi-wheeled vehicle  
The present invention provides a multi-wheeled vehicle of the motorcycle or motor scooter type including having a vehicle body including a front cover, a rear cover and a low-slung footrest portion...
4721177 Device for direct driving of wheels  
A device for direct-driving of wheels, adapted for various minivehicles, in particular, for bicycles, motorbikes, or motorcycles. The device comprises a fixed wheel axle, a wheel hub rotating about...
4721179 Double swing-arm motorcycle frame  
A motorcycle frame in which both the front and rear wheels are supported by respective pairs of swing arms pivotally supported by two side frames. Each side frame has a front and a rear bracket and...
4717163 Fuel tank for straddled type vehicles  
The known fuel tank for straddled type vehicles that is formed to have an inverse U-shaped transverse cross-section with its lower section bifurcated into left and right branch portions so as to...
4715465 Body construction for motor scooter vehicles  
A body construction for a motor scooter vehicle, is supported by a vehicle frame assembly comprising a front frame having a head tube on a front end thereof and a rear frame, and comprises a front...
4714061 Inline multiple cylinder engine for motorcycles  
A motorcycle having an improved engine construction wherein the combined crankcase transmission assembly of the power plant is formed from upper and lower members that have mating faces that lie in...
4712637 Straddle type vehicle seat assembly  
In a saddle type vehicle wherein a front portion of a saddle type seat covers a rearward portion of a fuel tank placed above the engine on a small vehicle frame, both side portions of the forward...
4712638 Suspension system for motorcycles  
A motorcycle having front and rear swing arm suspension systems. The motorcycle includes a structural frame including as a structural element the engine of the vehicle along with a support member....
4712629 Engine and drive belt cooling system for an all terrain vehicle  
The present invention relates to an improvement in the cooling efficiency of an air cooling and vent device for use with a belt drive type power transmission for an all terrain vehicle, wherein...
4703825 Fairing with a ventilation system  
A fairing in a motorcycle includes a fairing body covering a motorcycle engine, an air outlet duct disposed in the fairing body and having an end opening at one side of the fairing body, a fan for...
4702339 Rear wheel braking apparatus for motorcycle  
A rear wheel braking apparatus for a motorcycle wherein a rear fork with a rear wheel pivotally mounted on the rear end thereof is coupled to the frame of the motorcycle via a pivot shaft in a...
4702340 Motorcycle apparatus  
A motorcycle apparatus having improved features relating to an improved overall drive system for providing automatic transmission operation. Also described is an improved transmission construction...
4702338 Suspension device for a vehicle wheel support arm and front-rear coupling system for said suspension  
A suspension device of a rotary support arm of a vehicle wheel, in particular of a motorcycle, cooperating with a compression springs and front-rear coupling system of the suspension, wherein a...
4700799 Frameless motorcycle  
A frameless motorcycle (1) comprises a front suspension (7, 8, 9, 11, 12, 13, 5a, 5b) including an upper front swing arm (7) and a lower front swing arm (8) cooperating with each other to support a...
4700795 Motorcycle with an enclosed battery mounted to have a predetermined angular relation with respect to the body frame  
A motorcycle equipped with an enclosed battery having a closed structure, is characterized by installing the enclosed battery in a manner that a side face of a battery case makes an angle with a...
4700963 Variable angle steering system  
A steering system is disclosed for providing a continuous change in the pitch angle of the front fork of a motorcycle or similar vehicle as the handlebars are turned. A shaft is coupled to the...
4699232 Exhaust pipe cover for motorcycles  
A motorcycle of the type having horizontally opposed cylinder blocks and rearwardly extending exhaust pipes therefrom having a cover on either side of the vehicle extending from around the...
4699233 Vehicle body frame of motor bicycle  
A pair of right and left main pipes and or a pair of right and left down tubes, or a main pipe and a down tube are formed of one piece of continuous pipe material with its intermediate portion...
4697664 Scooter type motorcycle  
A scooter having a low bed footboard, a rear cover rearwardly of said footboard and a front cover forwardly of said footboard. An engine is located beneath the forward portion of the footboard. A...
4696363 Motorcycle frame  
A motorcycle having an improved, lightweight, high strength frame formed from castings and stampings that are welded to each other.
4691800 Vehicle body frame for motorcycles  
In a vehicle body frame for motorcycles of the type that a single-tube main frame extending from a head pipe to the rear of the vehicle body and a single-tube down frame extending downwards from...
4690236 Motorcycle lubrication system  
A frame for a motorcycle having a sealed cavity located within the down tube assembly. The down tube assembly includes two parallel down tubes with two cross members joining same. An inlet and...
4690237 Rear structure for motorcycles  
A rear structure for a motor cycle having a driver's seat and a rear rider's seat, comprises a rear trunk for receiving therein articles, a pair of armrests for bearing rear driver's elbows in a...
4687072 Instrument display system  
A system for a motorcycle to display various vehicle monitoring readings having a lightweight liquid crystal plate element mounted on the vehicle front within easy view of the motorcycle operator...
4685530 Side cover structure for motorcycles  
A side cover structure used in a motorcycle having a motorcycle frame, a fuel tank supported on the motorcycle frame, a driver's seat disposed on the motorcycle frame, and an engine supported on...
4684144 Frame body of motorcycle  
A motorcycle having an improved lightweight, high strength frame construction made up of a head pipe, a box section member that is affixed, as by welding to the head pipe and a pair of main frame...
4679647 Rear seat cover for vehicles having a saddle-shaped seat  
In motorcycles, motor-tricycles, snow-mobiles, etc. provided with a tandem seat so as to enable tandem riding, a rear end of a rear seat cover which covers a rear seat portion of the tandem seat...
4678223 Cowling device for riding type vehicles  
A cowling device for a cycle type vehicle includes a forward unit defining a radiator air intake opening and separate removable central panels spaced from the forward unit to define a pair of side...
4678054 Body frames  
For at least a portion of a body frame, a pipe member is used, which includes therein a longitudinal partition wall for defining passages. The pipe member is provided with an inlet and an outlet to...
4676332 Exhaust pipe supporting structure  
An exhaust pipe supporting structure (10) comprising an anti-vibratory member (14) reduced in spring coefficient, gradually along the length from one part (14a, 8b) thereof connected at the side of...
4673190 Protective bar assembly for motorcycle  
A protective bar assembly for a motorcycle comprising a side bar assembly that extends along the side of the motorcycle and operator and a vertical, U-shaped roll bar that extends upwardly from the...
4673052 Motorcycle housing exhaust system  
A motorcycle having exhaust pipes of equal length and a V-type engine having a front and rear cylinder block. The exhaust pipe associated with the front cylinder block extending directly back to...
4671374 Main stand device for two-wheeled motorcycle  
A main stand device for a two-wheeled motorcycle having a body frame, which comprises a main stand pivotally secured to the body frame for rotation between a stored state and a standing state, an...
4664215 Shaft drive for balloon tired motorcycle  
An improved drive arrangement for an off the road motorcycle having a balloon tired rear wheel that has a width at least equal to the width of the vehicle frame. The rear wheel is driven from an...