Besides all the great features of the original Fikse wheel series the Profil offer these improvements. Deeper spoke section dimensions results in increased stiffness for better cornering performance. Deeper mounting pad thickness allows clearance for larger brakes. Sculpted pockets on the mounting pad for reduced weight. 3D chamfering on all spoke edges. Increased fatigue life and improved look. 18"-19" diameter wheel designs in proportion with each other for staggered fitments. New valve stem with lower profile for greater strength. Streamlined rim flange for greater curb protection. New heated treated alloy rims for stronger/lighter wheels. New full polished finish with clear coating over the center section.