With the Mountain Machine, Velocitech was trying to design the ultimate climbing weapon. It evolved during a time when there were often high climb events that went straight up the side of a steep hill and were generally deemed unclimbable, with the winner being the rider who high marked above all others. Mismatched wheel sizes were already being toyed with but the Mountain Machine took the concept to the next level by using a 24'' front wheel and a 20'' rear wheel. The idea was to both lower the center of gravity and take advantage of the torque provided by the smaller rear wheel, while the bike's extra long wheelbase allowed for a 50/50 weight distribution to keep the front tire planted.
Special thanks to The Pros Closet
for the information and original photography.