Omnium Aluminium Being the most economical version of Track for competition, this model built in 7075 aluminum alloy, with perfectly disguised welds, mounts a special Full Carbon Tapered 1 "1/8 x 1.5" fork having the same geometry as its carbon congener allowing large Performances inside the Velodromes, ideal frame for who wants to start in this fantastic modality is available in 4 different sizes which allows a perfect fit for each one.