The 7 Shank has quite a bit of weight behind the mouthpiece, which allows a quick release from the rider’s hands. This is an excellent transition bit out of an O-ring or D-ring. The square port is more aggressive than the traditional rounded port because you are working off the corners of the mouth. The twisted bar pieces are more aggressive. Mouth: 5 1/8″ Cheek: 6 1/2″ Port: 1 1/2″
