A saddled vehicle driven by a driver sitting on a saddle seat with steering a bar handle comprising: a bar handle on both tip ends of which are provided with a grasping grip (Gb) to be grasped by a driver and a throttle grip (Ga) for an accelerator operation; a first brake means and a second brake means including two operation means for performing a braking operation, at least one of which being mounted on the tip end of the bar handle; a deceleration adjustment means for automatically adjusting the deceleration of the vehicle, wherein the saddled vehicle further comprises a driver's demand judgment means for judging the deceleration of the vehicle demanded by the driver in accordance with operation conditions of the first brake means and the second brake means, wherein the deceleration adjustment means is able to control the vehicle on the basis of the deceleration judged by the driver's demand judgment means, and wherein the saddled vehicle further comprises a target deceleration setting means for setting a target deceleration on the basis of the deceleration judged by the driver's demand judgment means to control the vehicle as having the target deceleration set by the target deceleration setting means, characterized in that it comprises: a gradient detection means for detecting a road gradient during travel of a vehicle, and in that the deceleration is adjusted in accordance with the road gradient detected by the gradient detection means, wherein the target deceleration set by the target deceleration setting means is maintained even if the operation of the first brake means or the second brake means is stopped. a bar handle on both tip ends of which are provided with a grasping grip (Gb) to be grasped by a driver and a throttle grip (Ga) for an accelerator operation; a first brake means and a second brake means including two operation means for performing a braking operation, at least one of which being mounted on the tip end of the bar handle; a deceleration adjustment means for automatically adjusting the deceleration of the vehicle, wherein the saddled vehicle further comprises a driver's demand judgment means for judging the deceleration of the vehicle demanded by the driver in accordance with operation conditions of the first brake means and the second brake means, wherein the deceleration adjustment means is able to control the vehicle on the basis of the deceleration judged by the driver's demand judgment means, and wherein the saddled vehicle further comprises a target deceleration setting means for setting a target deceleration on the basis of the deceleration judged by the driver's demand judgment means to control the vehicle as having the target deceleration set by the target deceleration setting means, characterized in that it comprises: a gradient detection means for detecting a road gradient during travel of a vehicle, and in that the deceleration is adjusted in accordance with the road gradient detected by the gradient detection means, wherein the target deceleration set by the target deceleration setting means is maintained even if the operation of the first brake means or the second brake means is stopped. a gradient detection means for detecting a road gradient during travel of a vehicle, and in that the deceleration is adjusted in accordance with the road gradient detected by the gradient detection means, wherein the target deceleration set by the target deceleration setting means is maintained even if the operation of the first brake means or the second brake means is stopped.