Upgrade your ride rotor q rings make your spin cycle smoother make climbing easier on the legs and help reduce the build up of lactates during hard efforts rotor q rings minimize the dead spots like reducing the size of a regular chainring and give you more time during the pedal down stroke this allows for a lower physical demand on your body so you are able to ride longer with less fatigue and climb easier rotor q rings change the equivalent tooth size by decreasing it before the dead sp