Horse controls?

[MJROu812]

I am trying to get the feel of the controls for my horse, not to far into the game, but my question is when your at full speed, what button or way to pull the rains back to stop the horse....I have tried everything? playing on ps4 pro.

Edited October 28, 2018 by MJROu812

[Benjo]

R1 / RB