The MB 16PB has a generously wide and moderately high port that allows plenty of room for the horse’s tongue to pass under the bit, more so than the MB 33. Although the port is 1 ⅞", its generous width makes the mouthpiece sit very low in the mouth, minimizing the likelihood of any palate pressure. Sweet iron mouthpiece oxidizes and encourages salivation.
Independent Side Movement
Sweet Iron mouthpiece
Notes: For slightly less tongue relief, see the MB 33 or MB 05. For the same tongue relief without Independent Side Movement, see the MB 16.
The MBL Shank is a length of flat stainless steel curved slightly back towards the horse, with a teardrop purchase and a rein ring. The mouthpiece attaches loosely to the cheek with a small decorative stack that allows ⅛" of slide, just enough to allow more tongue relief. The purchase is angled slightly away from the cheek to avoid rubbing. The MBT has the patented Independent Swivel Cheek, where the purchase, mouthpiece and shank all move independently of each other.
The MBL is an indirect (curb) rein action designed to be used with a curb strap which attaches to the purchase. The MBL uses the combination of fixed cheek and fixed rein to apply pressure to the mouth, chin and poll. Recommended for use with ported mouthpieces.