"Bit seats" refer to the rounded and smoothed rostral surface of the second
premolars. It is created to improve comfort in the mouth of performance ho
rses. We designed a study to determine the effects of bit seats on both the
athletic and eating performance of the horse. We found that bit seats crea
ted no adverse effects in athletic or eating performance and that trainers
recognized on improvement in athletic performance of most horses after the
bit seats were created.