The single jointed loose ring version of the successful double jointed Dynamic RS bits. The ergonomically formed mouthpiece allows a rapid and balanced effect on the tongue. In comparison to conventional single jointed bits the Dynamic RS mouthpieces give even pressure on the entire tongue area. Dynamic RS bits present a better contact between horse and rider. Brilliant for horses that are overactive in the mouth playing too much with the lozenge and therefore unresponsive to the signals of double jointed bits.