It's the year 1989 and the world is now convinced of the importance of mountain biking. Peugeot is fully committed to this and offers an affordable model in the form of the US Express.

With the minimum of what makes a bike an ATB: cheap steel rims and only 15 gears, operated with non-indexed shifters.

However, the method used to make the frame is interesting: usually frame tubes were welded together on the outside, but Peugeot soldered the tubes together from the inside. This technique was previously used in, among other things, the production of steel furniture and provided a stronger and lighter connection between frame tubes. So innovative...