To prevent the deformation of a handlebar cover unit by absorbing and dispersing external force by a separate member when excessive external force acts upon the handlebar cover unit by fixing a pipe-like metal bracket integrally fitted to the lower part of the handlebar cover unit, to a handle stem pipe.
A handlebar cover unit Uh integrally formed of hard synthetic resin material such as ABS resin or polypropylene and comprising a center cover part 2 and left and right handlebar part 3l, 3r integrally extended in the lateral directions from the center cover part 2, is fixedly supported to the upper part of a handle stem pipe 1 by a pipe-like metal bracket Br and a metallic keep plate 27. In this case, bolts 35 piercing a bottom wall part 10 in the state of being vertically held by the keep plate 27 and a flange-like support member 31 is thread-fastened by nuts 36, and the upper end of the handle stem pipe 1 is fitted to a lower half part with a slot 32 of the pipe-like bracket Br to thread-fasten a bolt 37 piercing a bolt hole 34 of a clamp piece 33, by a nut 38.
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