This is Mark M’s reverse conversion mid-1990s Bridgestone XO5.
This is a reversal of sorts. A 1990s Bridgestone XO5 hybrid converted to a road bike. Bar end shifters, 21 speed, 700cm wheels and cantilever brakes. Kind of a cyclocross bike. Nice riding bike that works great in northern Minnesota where one traverses both paved and gravel roads.