Q: What bits do you suggest for a 3 year old horse?
A: When looking for a bit for a young horse, consider a lower port in the mouthpiece. You want to be able to apply tongue pressure to communicate firmly with your horse. The shank of the bit will give the rider more leverage. The longer the shank, the more leverage the rider has for control. Myler - Level 1 bits are great for starting out a young horse. They offer enough comfort that won't give unnecessary stress to your horse, while giving you enough power to effectively communicate.