Advantages of our special Direct mount chainrings: *We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape. *Finest design to provide excellent weight to strength ratio *One of a kind special oval shape (Patent Pending) *Greatly improves traction and climbing abilities *Unique Patent Pending narrow-wide teeth profiles to keep your chain in place for minimum 12 months! *Special 3D teeth machining for ultimate mud relief decrease wear and noise dramatically *They save weight because they don't need the spider and chainring bolts. *The ability of installation of a smaller ring sizes that can't be mounted on regular spider. *Superb quality and great look. *You will ride faster using ovals. If you keep using round ring then others will get quicker. *You will not "feel" the oval shape at all *Reduces stress on knees *Chainring is reversible and fits also Fatbikes with 170/190mm axles