An MT, manual transmission, type straddled vehicle comprising: a frame; a seat attached to the frame; a multi-stage transmission device configured to change a gear ratio in multiple stages in response to an operation; an engine including a crankshaft, a piston, a cylinder, and a crankcase, the crankshaft extending in a left-right direction of the MT type straddled vehicle, the cylinder having a cylinder bore in which the piston is reciprocably accommodated, the crankcase being connected to the cylinder and storing the crankshaft and the multi-stage transmission device, the engine being attached to the frame; a starter motor configured to start the engine; a battery configured to supply electricity to the starter motor; a motor driver configured to perform switching of a current to be supplied to the starter motor; an air cleaner configured to clean the air to be supplied to the engine; and a side cover configured to cover at least a part of each of the air cleaner and the battery in view of the left-right direction, the side cover being configured to be visible from the outside of the MT type straddled vehicle so as to define the external appearance of the MT type straddled vehicle, the starter motor being provided to one end portion of the crankshaft, the starter motor being a multi-phase brushless motor that serves also as a generator that is configured to generate electricity by being driven by the engine, the air cleaner and the battery being arranged next to each other in a front-back direction so that both of the air cleaner and the battery lie over two regions that are defined by division by a center plane passing through the center of the MT type straddled vehicle and extending both in an up-down direction and the front-back direction of the MT type straddled vehicle, the motor driver being arranged in a space between the side cover, and the air cleaner and the battery so that the motor driver overlaps both the air cleaner and the battery in view of the left-right direction, wherein the frame has a portion that extends between the side cover, and the air cleaner and the battery, the portion overlapping at least partially the motor driver in view of the up-down direction. a frame; a seat attached to the frame; a multi-stage transmission device configured to change a gear ratio in multiple stages in response to an operation; an engine including a crankshaft, a piston, a cylinder, and a crankcase, the crankshaft extending in a left-right direction of the MT type straddled vehicle, the cylinder having a cylinder bore in which the piston is reciprocably accommodated, the crankcase being connected to the cylinder and storing the crankshaft and the multi-stage transmission device, the engine being attached to the frame; a starter motor configured to start the engine; a battery configured to supply electricity to the starter motor; a motor driver configured to perform switching of a current to be supplied to the starter motor; an air cleaner configured to clean the air to be supplied to the engine; and a side cover configured to cover at least a part of each of the air cleaner and the battery in view of the left-right direction, the side cover being configured to be visible from the outside of the MT type straddled vehicle so as to define the external appearance of the MT type straddled vehicle, the starter motor being provided to one end portion of the crankshaft, the starter motor being a multi-phase brushless motor that serves also as a generator that is configured to generate electricity by being driven by the engine, the air cleaner and the battery being arranged next to each other in a front-back direction so that both of the air cleaner and the battery lie over two regions that are defined by division by a center plane passing through the center of the MT type straddled vehicle and extending both in an up-down direction and the front-back direction of the MT type straddled vehicle,