A straddled vehicle comprising: a vehicle body frame ; an internal combustion engine supported by the vehicle body frame ; a rear arm supported on the vehicle body frame to be swingable by a pivot shaft ; a rear wheel supported by the rear arm , the rear wheel being configured to be driven by the internal combustion engine ; and a rear suspension unit including a first support supported by the vehicle body frame and a second support supported by the rear arm , wherein the internal combustion engine includes a crankcase , a cylinder body extending forward in a vehicle front-rear direction and upward in a vehicle up-down direction from the crankcase , a cylinder head extending forward in the vehicle front-rear direction and upward in the vehicle up-down direction from the cylinder body , a crankshaft disposed inside the crankcase , and a transmission disposed inside the crankcase and at the rear of the crankshaft in the vehicle front-rear direction, the rear suspension unit includes a damper , a coil spring disposed around at least a part of the damper , a reservoir in which a gas chamber is formed, and an actuator configured to receive an electrical signal and adjust a damping force of the damper , the reservoir and the actuator are disposed at the outside of the damper and integrally provided to the damper , the reservoir is disposed at the rear of an upper end of the cylinder head in the vehicle front-rear direction, above the transmission in the vehicle up-down direction and preferably overlaps the transmission in a vehicle plan view, and at the front of a rear end of the crankcase in the vehicle front-rear direction, and the rear suspension unit is located below the upper end of the cylinder head in the vehicle up-down direction, characterized in that in a vehicle side view, an angle (θ) formed by a center line (CA) of the rear suspension unit and a horizontal line (HL) is 45 degrees or less. a vehicle body frame ; an internal combustion engine supported by the vehicle body frame ; a rear arm supported on the vehicle body frame to be swingable by a pivot shaft ; a rear wheel supported by the rear arm , the rear wheel being configured to be driven by the internal combustion engine ; and a rear suspension unit including a first support supported by the vehicle body frame and a second support supported by the rear arm , wherein the internal combustion engine includes a crankcase , a cylinder body extending forward in a vehicle front-rear direction and upward in a vehicle up-down direction from the crankcase , a cylinder head extending forward in the vehicle front-rear direction and upward in the vehicle up-down direction from the cylinder body , a crankshaft disposed inside the crankcase , and a transmission disposed inside the crankcase and at the rear of the crankshaft in the vehicle front-rear direction, the rear suspension unit includes a damper , a coil spring disposed around at least a part of the damper , a reservoir in which a gas chamber is formed, and an actuator configured to receive an electrical signal and adjust a damping force of the damper , the reservoir and the actuator are disposed at the outside of the damper and integrally provided to the damper , the reservoir is disposed at the rear of an upper end of the cylinder head in the vehicle front-rear direction, above the transmission in the vehicle up-down direction and preferably overlaps the transmission in a vehicle plan view, and at the front of a rear end of the crankcase in the vehicle front-rear direction, and the rear suspension unit is located below the upper end of the cylinder head in the vehicle up-down direction, characterized in that in a vehicle side view, an angle (θ) formed by a center line (CA) of the rear suspension unit and a horizontal line (HL) is 45 degrees or less. <EOS>