Yes, you can neck rein with a curb bit. Neck reining is a technique used to steer and control the horse by applying pressure on the sides of its neck rather than using reins attached to the bit in its mouth. This method allows for more precise and subtle communication between rider and horse. A curb bit works well for this because it features a shank that gives additional leverage when necessary, allowing riders to use less force while still maintaining better control of their horse's direction. Additionally, because the lever action of a curb bit helps soften any abrupt commands from the rider, it can provide an easier transition into learning how to neck rein successfully.