Trust Inno Sense 2.5 Ring Medium Port BitA 2. 5 ring bit is a milder version of a 3 ring (Pessoa) bit. With this bit, leverage can be created. The lower the reins are placed, the stricter the bit becomes. An ideal bit for horses that are very strong in the course, grab the bit or walk through the hand. Compared to the 2. 5 bustrens, the watertrens rings can move loosely so that there is more movement in the bit and the help of the hand acts more indirectly. The Inno sense mullen is a