Hi, sorry for the late reply,
actually I personally find the hole bike very interesting, it's a JM Bike Racing, seem to be a local Spanish brand. I found a test in a Spanish magazine from 1991.
Sure, it reminds with oversized frame and fork but also the one-piece handlebar stem unit quite a bit of a Klein.
(text translated with Google)
and last but not least this another great shot, just to stick to the topic here