Abstract: To provide a rear wheel braking device for a motorcycle that can reduce an unsprung mass and the number of pieces of components on the rear wheel side of a shaft drive type motorcycle. In a rear wheel braking device for a motorcycle transmitting a drive force of a power unit of a motorcycle to a rear wheel through a drive shaft that extends in a vehicle longitudinal direction, the drive shaft includes a propeller shaft that is connected to a rear end of an output shaft through a universal joint, the output shaft protruding to the vehicle body rear side from a case member of the power unit. A brake disk is attached to the output shaft, the brake disk being braked by a rear wheel brake caliper. The rear wheel brake caliper is fixed to a bracket that is arranged in the case member, and is disposed on the vehicle body upper side of the brake disk.

Abstract: A saddle riding vehicle includes a body frame, an engine supported by the body frame, an exhaust sensor that detects exhaust air of the engine, and a radiator for the engine. The engine is supported by an engine hanger portion disposed in the body frame. The exhaust sensor is disposed on an exhaust pipe of the engine at a position on a front with respect to the engine hanger portion and is positioned underneath the radiator. At least a part of the exhaust sensor overlaps the engine hanger portion as viewed in a front view of a vehicle.

Abstract: A saddle riding vehicle includes a body frame, an engine supported by the body frame, an exhaust sensor that detects exhaust air of the engine, and a radiator for the engine. The engine is supported by an engine hanger portion disposed in the body frame. The exhaust sensor is disposed on an exhaust pipe of the engine at a position on a front with respect to the engine hanger portion and is positioned underneath the radiator. At least a part of the exhaust sensor overlaps the engine hanger portion as viewed in a front view of a vehicle.

Abstract: To provide a rear wheel braking device for a motorcycle that can reduce an unsprung mass and the number of pieces of components on the rear wheel side of a shaft drive type motorcycle. In a rear wheel braking device for a motorcycle transmitting a drive force of a power unit of a motorcycle to a rear wheel through a drive shaft that extends in a vehicle longitudinal direction, the drive shaft includes a propeller shaft that is connected to a rear end of an output shaft through a universal joint, the output shaft protruding to the vehicle body rear side from a case member of the power unit. A brake disk is attached to the output shaft, the brake disk being braked by a rear wheel brake caliper. The rear wheel brake caliper is fixed to a bracket that is arranged in the case member, and is disposed on the vehicle body upper side of the brake disk.