Brake device

The invention provides a brake device of a motorcycle which can mount a rear brake caliper and a parking brake caliper without shifting a swing arm toward the outside in the body width direction more than necessary. A brake device 30 of a motorcycle supports a rear wheel 45 on a swing arm 35, stretches a buffer 43 between the swing arm 35 and a body, and is provided with a parking brake caliper 62 and a rear brake caliper 72. In this brake device 30, a swing arm extension portion 36 which is extended in the rearward direction from a rear wheel shaft supporting portion 38 is provided to the swing arm 35. The buffer 43 is connected to a rear end connecting portion 37 of the swing arm extension portion 36. The parking brake caliper 62 and the rear brake caliper 72 are arranged above and below the swing arm extension portion 36.