A brake caliper arrangement structure for a saddled vehicle, wherein a brake caliper for braking and a brake caliper for parking are provided on a swing arm. At least one or other of the brake caliper for braking and the brake caliper for parking is arranged in front of a rear axle being the axle of the rear wheel, when viewed from a side, at a position on a vehicle widthwise inside of the swing arm and overlapping the swing arm.

A bicycle can include a suspension system with a shock absorber. The shock absorber can have a sag position which can be adjustable. Sag refers to the amount of movement experienced by the suspension under a static load, such as that of the weight of a rider. Methods and systems to set sag can include at least one valve in fluid communication with a gas chamber of the shock absorber. In some embodiments, the at least one valve can be used to automatically set the sag position based on an individual's weight and riding position.

A bicycle can include a suspension system with a shock absorber. The shock absorber can have a sag position which can be adjustable. Sag refers to the amount of movement experienced by the suspension under a static load, such as that of the weight of a rider. Methods and systems to set sag can include at least one valve in fluid communication with a gas chamber of the shock absorber. In some embodiments, the at least one valve can be used to automatically set the sag position based on an individual's weight and riding position.

A seat post for a bicycle comprises a post body having a first end shaped to be connected to a bicycle frame, a second end shaped to be connected to a saddle, at least two longitudinal portions meshing with each other and slidable relative to one another along a longitudinal extension, and a fixing apparatus by which the two longitudinal portions can be fixed to one another in a settable relative position, the fixing apparatus being influenced to selectively fix and unfix by a radio signal.

A rear wheel suspension device includes: a swing arm swingably supported with respect to a vehicle body frame, the swing arm being configured to rotatably support a rear wheel; a rear cushion configured to be extended and contracted in accordance with swing of the swing arm; a cushion lever coupled to a lower end portion of the rear cushion; a cushion rod coupling the cushion lever and the swing arm; an accumulator storing a working fluid that extends and contracts the cushion rod; and an accumulator bracket supporting the accumulator. A vehicle height is adjusted by displacement of the swing arm in accordance with extension and contraction of the cushion rod. A muffler pipe extends rearward from an engine through a side of the accumulator. The accumulator bracket is configured to separate the accumulator and the muffler pipe.

A rear wheel suspension device includes: a swing arm swingably supported with respect to a vehicle body frame, the swing arm being configured to rotatably support a rear wheel; a rear cushion configured to be extended and contracted in accordance with swing of the swing arm; a cushion lever coupled to a lower end portion of the rear cushion; a cushion rod coupling the cushion lever and the swing arm; an accumulator storing a working fluid that extends and contracts the cushion rod; and an accumulator bracket supporting the accumulator. A vehicle height is adjusted by displacement of the swing arm in accordance with extension and contraction of the cushion rod. A muffler pipe extends rearward from an engine through a side of the accumulator. The accumulator bracket is configured to separate the accumulator and the muffler pipe.

Disclosed is a power rear fork driving system for a pure electric two-wheeled motorcycle, including a rear fork fixing base One side of the rear fork fixing base is connected to a frame, a power rear fork shell and a supporting rear fork are respectively arranged at both ends of the other side of the rear fork fixing base, an output shaft is rotationally connected between the power rear fork shell and the supporting rear fork, a motor cavity is arranged on the power rear fork shell, a gear cavity is formed in a side of the motor cavity proximal to the output shaft, a driving motor is arranged in the motor cavity, a driving gear shaft and a driven gear meshed with each other are arranged in the gear cavity, and the driving gear shaft and the driven gear are in reducing transmission.

Disclosed is a power rear fork driving system for a pure electric two-wheeled motorcycle, including a rear fork fixing base One side of the rear fork fixing base is connected to a frame, a power rear fork shell and a supporting rear fork are respectively arranged at both ends of the other side of the rear fork fixing base, an output shaft is rotationally connected between the power rear fork shell and the supporting rear fork, a motor cavity is arranged on the power rear fork shell, a gear cavity is formed in a side of the motor cavity proximal to the output shaft, a driving motor is arranged in the motor cavity, a driving gear shaft and a driven gear meshed with each other are arranged in the gear cavity, and the driving gear shaft and the driven gear are in reducing transmission.

This utility model provides a novel cushion adjustment mechanism and child tricycle, which includes cushion; one end of the said main beam tube is connected with the cushion and the other end is connected with the tricycle body; the adjustment unit is fixing-connected with the main beam tube. The adjustment unit is provided with a positioning assembly; the rear part includes two fixing plates. One end of the fixing plates is connected with the rear wheel and the other end is connected with the adjustment unit. The fixing plate connected with the adjustment unit is provided with a counter locking screw rod. One end of the counter locking screw rod passes through the rotation hole and is fixing-connected with the adjustment unit. After adjustment, the child tricycle using this mechanism will have a good stability and avoids the slippage issue of the cushion height controlled by the friction force.

An electric vehicle (e.g., a tricycle, or a car) includes a frame portion having a first side and a second side. A first rear wheel is disposed rearward relative to the frame portion at the first side. A second rear wheel is disposed rearward relative to the frame portion at the second side, the second rear wheel being spaced from the first rear wheel with a wheel base width therebetween (e.g., in a range from 260 mm to 900 mm). A first swing arm is pivotably coupled to the frame portion at the first side and operably coupled to the first rear wheel and extending between the frame portion and the first rear wheel. A second swing arm pivotably coupled to the frame portion at the second side and operably coupled to the second rear wheel and extending between the frame portion and the second rear wheel.