Abstract: A drive system package includes a housing. Located at the housing are a mechanical interface to output mechanical power, an electrical power connector receiver and a user interface. A motor vehicle includes a motor vehicle frame and one or more drive components. The motor vehicle further includes a drive system package having a housing. A mechanical interface is located at the housing and is operably connectable to the one or more drive components. The drive system package further includes an electrical power connector receiver and a user interface located at the housing.

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 motorcycle or bicycle front end having coaxial steering and suspension components, and having telescopic forks. Swing weight of the forks is dramatically reduced by removing their suspension components to the central location, coaxially within the steering tube. Ride height can be adjusted without loosening the forks in the triple clamps.

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 coupling to an upper triple clamp and the other end coupling to a lower triple clamp. A spring unit is coupled to one of the two ends of the steering shaft 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 is coupled to the other one of the two ends of the steering shaft to create a pivoting axis. The suspension assembly permits the front end to pivot about the pivoting axis and the spring unit to flex in response to bumps in the road surface.

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 motorcycle having an improved rear suspension in which the shock leverage rate is decoupled from the spring leverage rate. The springs are coupled directly between the swingarm and the frame, while the shock is coupled to the swingarm and coupled to the engine by a linkage. The rear suspension has a substantially linear spring leverage rate, and a different shock leverage rate which is determined by the linkage and is not necessarily linear. The springs are coupled to the swingarm by a spring base which threads into a ride height adjuster cup which is coupled to the swingarm and which can be rotated to raise and lower the ride height, and a preload cup which is coupled to the frame and which can be rotated to increase and decrease the preload on the spring.

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 coupling to an upper triple clamp and the other end coupling to a lower triple clamp. A spring unit is coupled to one of the two ends of the steering shaft 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 is coupled to the other one of the two ends of the steering shaft to create a pivoting axis. The suspension assembly permits the front end to pivot about the pivoting axis and the spring unit to flex in response to bumps in the road surface.

Abstract: A motorcycle whose front end has a coil-over shock disposed within the head tube and telescopic forks which include linear bearings riding between flats on the outer face of the inner fork tubes and flats on the inner face of the outer fork tubes. The linear bearings ride on hardened steel races, enabling the fork tubes to be e.g. aluminum. Using an odd number of linear bearings in each fork prevents having two linear bearings at 180° opposition which would increase sensitivity to manufacturing tolerance stackups, preload, and the like.

Abstract: A motorcycle whose front end has a coil-over shock disposed within the head tube and telescopic forks which include linear bearings riding between flats on the outer face of the inner fork tubes and flats on the inner face of the outer fork tubes. The linear bearings ride on hardened steel races, enabling the fork tubes to be e.g. aluminum. Using an odd number of linear bearings in each fork prevents having two linear bearings at 180° opposition which would increase sensitivity to manufacturing tolerance stackups, preload, and the like.

Abstract: A poppet valve for use in an internal combustion engine. The poppet has a partially-inverted perimeter shape which nevertheless substantially maintains the curtain area of the valve. These improved valves pack more efficiently into the combustion chamber roof area than would conventional, circular-perimeter poppet valves. For the same size combustion chamber, significantly greater total curtain area is achieved, improving engine performance. Valve weight is greatly reduced, enabling the use of lighter return springs, camshafts, desmodromic actuators, and so forth.

Abstract: A motorcycle whose front end has a coil-over shock disposed within the head tube and telescopic forks which include linear bearings riding between flats on the outer face of the inner fork tubes and flats on the inner face of the outer fork tubes. The linear bearings ride on hardened steel races, enabling the fork tubes to be e.g. aluminum. Using an odd number of linear bearings in each fork prevents having two linear bearings at 180° opposition which would increase sensitivity to manufacturing tolerance stackups, preload, and the like.

Abstract: A poppet valve for use in an internal combustion engine. The poppet has a partially-inverted perimeter shape which nevertheless substantially maintains the curtain area of the valve. These improved valves pack more efficiently into the combustion chamber roof area than would conventional, circular-perimeter poppet valves. For the same size combustion chamber, significantly greater total curtain area is achieved, improving engine performance. Valve weight is greatly reduced, enabling the use of lighter return springs, camshafts, desmodromic actuators, and so forth.

Abstract: A motorcycle or bicycle front end having coaxial steering and suspension components, and having telescopic forks. Swing weight of the forks is dramatically reduced by removing their suspension components to the central location, coaxially within the steering tube. Ride height can be adjusted without loosening the forks in the triple clamps.

Abstract: A motorcycle or bicycle front end having coaxial steering and suspension components, and having telescopic forks. Swing weight of the forks is dramatically reduced by removing their suspension components to the central location, coaxially within the steering tube. Ride height can be adjusted without loosening the forks in the triple clamps.

Abstract: A back-torque limiting slipper clutch. An engine including such a slipper clutch separate from its conventional gearbox clutch. A motor vehicle including such an engine having separate slipper clutch and gearbox clutch. A motorcycle having separate slipper clutch and gearbox clutch. The slipper clutch friction stack tension can be altered statically or dynamically. The slipper clutch may include a secondary output shaft which moves the final output to a point not coaxial with the slipper clutch, such as to move the final output to a different vertical height with respect to a swingarm pivot of the motorcycle.

Abstract: A motorcycle having an improved rear suspension in which the shock leverage rate is decoupled from the spring leverage rate. The springs are coupled directly between the swingarm and the frame, while the shock is coupled to the swingarm and coupled to the engine by a linkage. The rear suspension has a substantially linear spring leverage rate, and a different shock leverage rate which is determined by the linkage and is not necessarily linear. The springs are coupled to the swingarm by a spring base which threads into a ride height adjuster cup which is coupled to the swingarm and which can be rotated to raise and lower the ride height, and a preload cup which is coupled to the frame and which can be rotated to increase and decrease the preload on the spring.

Abstract: A motorcycle or bicycle suspension having adjustable side-to-side flexibility. The suspension includes a telescopic fork and a fork bottom which couples the fork to the axle of a wheel. The fork bottom and the fork are stiff in the direction of travel, to avoid flexing under heavy braking. The fork bottom is flexible in the lateral direction, to improve the ability of the tire to stay in contact with the ground when leaned over and cornering over irregular, bumpy ground. The lateral flexibility of the fork bottom is adjustable by tightening or loosening a tension cable which is attached to the ends of the fork bottom and stretched over a fulcrum in the middle of the fork bottom. Tightening the tension cable increases sideways thrust of the fulcrum against the fork bottom, reducing the lateral flexibility of the fork bottom.

Abstract: A motorcycle or bicycle having a fork with swappable trail adjustment blocks which hold the front axle to the fork. Trail can be adjusted without removing the forks or even loosening them in the triple clamps, and without altering ride height or rake angle. Brake caliper mounts are swapped when the trail adjustment blocks are swapped, moving the brake calipers the same distance and direction as the axle, to maintain a constant radial distance from the axle to the brake pads. The brake caliper mounts pivot on the forks, enabling the brake calipers to be swung outward so the wheel can be changed without removing the brake calipers from the forks.