To avoid enlargement and design limitation of a front cowl accompanying the installation of an ABS unit, and to appropriately keep the longitudinal weight distribution of a vehicle body.

A front fork 25 is supported laterally turnably by a head pipe 14 at the front end of a vehicle body frame 2, and a master cylinder 55 mounted to a handle bar 4 fixed to the upper end thereof and a hydraulic wheel braking section (disc braking system 52) are interconnected through a brake pipe 58. The ABS unit 63 is interposed in the midway of the brake pipe 58, is expanded just after the head pipe 14 and from the head pipe 14 to both out sides in the vehicle width direction, and is disposed between a pair of right and left vehicle body frame constituting members 15 and 17 extending backward, diagonally, and downward.